Pontiac 428 vs 455

Pontiac 428 vs 455

pontiac 428 vs 455 68 428 block XF 1969 Grand Prix 370 HP Takes a #62 or #16 heads for 370 HP or 390 HP $1,500: $132. Bore, 1/16 in. 61 liters. > Fits 67-69 GM F-body Firebird, 71-77 X-body Ventura, 60-70 B-body Cat Bonne, 69-72 GP. In 1970 the 428 is bored and stroked to a 455, and if you do the math the Pontiac 455 is really a 456 just like the Pontiac 350 is not a 350. Pontiac V-8 crankshaft part numbers and specifications 1955-1981. 350; 455; 1946-48 Truck. Similar identifiers would be used to identify other displacements (455, 350 in 1970, and 400 in 1971). A 428 engine shares the 4. WIP: 1955 Pontiac Star Chief The Pontiac brochure indicated the same 455 installed in the Grand Prix model was rated at 370 horsepower (280 kW). You must find the date code at the back LH side of the block first. Shop millions of cars from over 21,000 dealers and find the perfect car. About Contact Parts For Sale. But the big news was that both 428 engines were dropped and in their place was Pontiac’s brand new 455 cid V8, the largest engine ever in a Grand Prix. 97 / set For 1969+ Pontiac models, 350, 400, 428 & 455 Pontiac engines with 11 bolt water pump. The block is a 70 455 4 bolt. 196-231 V6; 364-425 Nailhead; Cadillac Engines. ALL Pontiac engines from 326-455 are the same size externally. classicalpontiac. The 400 and 455 blocks share the same size externally, but they are two different blocks internally. Pontiac Serpentine Pulley Conversion kit Alt & PS 350   30 Sep 2014 What about the Chevy/GMC 502 c. Pontiac Serpentine Pulley Conversion kit A/C Alt PS 350 400 428 455 AC 1. 188 in. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. 350; 455; 1930-48 Chevy Truck. If you have any questions or would like a quote, please drop us an email. A 400 Pontiac is not a torque maker. 4 bolt pulley pattern on 3. Fits 68-79 GM A-body; 70 1/2-81 F-Body; 69-77 G-Body, 69-81 B-Body with these heads: RA II, RA IV, 455 HO, 455 SD, Edelbrock heads. 1973 Pontiac Trans Am 400 455 Dated Coded Engine Heads. 09 X 4. 120" bore with standard performance: PO428M69STD: Pontiac 455 V8 1970 except YH model: PO455M70EXC/YH: Pontiac 455 V8 1970 Model YH: PO455M70W/YH: Pontiac 455 V8 1971-72 (with high performance) PO455M71-72HP: Pontiac 455 V8 1971-72 (with 4Brl Carburetor) PO455M71-72W/4BRL: Pontiac 455 V8 1971 (with 2Brl Carburetor 29 May 2009 I do have a comp cams XE 262 in there, how would the car idle/perform with this cam in a 455 vs 428? This may be one way we can figure it out  14 Mar 2010 The 400 stroker is technologically superior to the 428 or 455, but plenty of Pontiac fans have built strong motors using both- it just depends on  4 Apr 2007 I have a 69 Firebird, originally a 350 car, but the 350 was replaced with a 67 428 from a catalina. 10 watching. Oct 21, 2019 · I knew three guys who had new SD-455’s in 74. . Their 455 was derived from these new engines IIRC. 800 H-Beam Rods, 4032 Mahle Forged -6cc Flat Top Pistons with Rings and Bearings, Rotating Assembly has been Internally Balanced Oct 04, 2015 · The big Pontiac Ram Air 400 was also a victim of underrating, advertised at 366 HP at 5100 when in fact maximum power is 410hp @5600. Ford Cobra Jet 428 In base form, the 455-cubic-inch V8 already was nothing to sneeze at, but the Buick 455 Stage 1 (a $115 upgrade) featured cylinder heads designed to accept larger 2. Discussion in 'The Hokey Ass Message Board' started by draggin'GTO, Apr 19, 2015. com, research by John V, andothers. Our wide selection is elegible for free shipping and free  455, V-Belt: Power Pulleys - ✓ FREE DELIVERY possible on eligible purchases, Buy Billet Aluminum Pontiac Power Steering Pulley, 350-400, 428. In 1970 this ban was lifted and thats when you saw the 454 in the chevelle ss, the 455 in the Buicks Pontiacs and Olds muscle cars. Enjoy your Pontiac hobby at the only 24-7 Pontiac Club that brings you Pontiac News, Pontiac Information, and Pontiac Entertainment at the speed of light. Despite some minor rust and a sloppy front suspension, Tom decided to bid. 12/1. Feel free to contribute. Here is a list of Pontiac engines based on my memory, 287, 326, 327, 347, 350, 370, 389, 400, 421, 428 I have a few projects (56 Buick , 55 Caddy) that could use a 455 Buick Olds or Pontiac engine. What was most interesting about the 421 engine in the beginning was that it was a dealer installed option The Strongest Aftermarket Pontiac Engine Block. Pontiac 455 / 468 Stroker Kit, Eagle 4340 Forged Steel Crankshaft 4. 0:1 to 10. It is for a 1965 gto. 64: 6. 77. Royal Pontiac also prepared the 428 engine with level 2 mods. Many consider this first generation of GTO to be credited to being the first muscle car. I am pretty certain that, on the next engine, I wont look for a used block. , 455 c. 326, 350, 421, 428 and 455 blocks will have the transfer lug. The 428 was one of the “long journal” V8 engines that Pontiac produced. Pan has straight, non kicked out sides to allow easy starter removal and extra header clearence. The question becomes, which of these motors is most desireable, reliable or rebuildable. Performance Parts: Engine Blocks: IA ll Standard PONTIAC and OLDS: MAIN CAP # STUD KIT # w/o windage tray: STUD KIT # with windage tray : Pontiac 421, 428, 455 (Angle Bolts) 11520: 81222: 81224: Pontiac 421, 428, 455 (Straight Bolts) 11500: 81222: 81224: Pontiac 421, 428, 455 (Front Cap Only) 11501 Pair LH and RH D-port Long Branch Factory Headers (shown with gray ceramic coating) Single side (either left or right) are 329. 00. even though the maximum torque on a 455 occurs at a lower rpm, the 455's torque is 13. A beautiful 1971 Pontiac GTO Judge Tribute car. I found this article while searching for good tech information on the comparison of ported vacuum versus manifold vacuum. pontiac engine decoder year code c/i hp tran carb car misc 1962 13b 421 3 m 2 x 4 full super duty 1962 13u 421 4 m 2 x 4 full super duty 1967 y2 428 360 a 4 full Otherwise. In 1966 Pontiac really didn't have a small block engine. Where to find the Casting Code: Casting codes for Pontiac 389 455 215cc 72cc Ramair Iv Hyd Roller Complete Aluminum Cylinder Heads. For the street and bracket crowd though, a med rpm 421, 428 or 455 will more  Early (1961 to 1979)Pontiac V-8 engine parts and engine building. Olds had the old 394, then a new 400 and 425. Based on production block and heads, this combination provides plenty of power with quality bottom In the 1960s and 1970s, there were two variations of the basic block design based on main-journal diameter: those with "big journals" (3. This "lug" was  The block is a 69 428. We have these forged piston sets available in a wide range of sizes including standard bore and many popular oversizes. Favourite FE 332-428; 351C-351M-400; 429-460; Flathead V8; Oldsmobile Engines. V8 Pontiac engines with a 4. Pontiac engines have block code. Converting a 400 to a 455 is not a new development, although many myths I have personally recorded eleven years of track results using these cut-down 455 (or 421/428)  7/16" винт в коромысло шпильки для Понтиак 400 428 455 D-портов at the I've been using these studs on my high end Pontiac engine builds for many  This is a pair of oil deflectors for 67-72 pontiac engines, They are in good shape ready to install, Price is for one pair with fifteen pair available. 95 shipping. Il était l'un des plus grands moteurs Pontiac produit, mais il a été utilisé plus pour alimenter les grosses voitures comme la Bonneville, et pas autant pour les voitures de perfo Pontiac 326 350 400 421 428 455 Connecting Rod Length, Specs and Prices. As with all other Pontiac V8 motors that evolved from the 316 V8, the 421 was simply a bored out and stroked version of the popular Pontiac 389 V8. All engine blocks have a casting code. 7% greater (455-400 x 100)/400 than the 400's torque. The 400-455 is pump gas friendly for the mild daily driver. 00" journal crank. V8's (except Ram Air V and 265/301 V8's). Together with the casting code and casting date you can determine where what the engine is. Ring Grooves, Pontiac, V8, Set of 8 Part Number: SRP-146508-8 Pontiac 400 428 455 Engine Codes; Pontiac 400 428 455 Engine Casting Numbers; Pontiac Cylinder Head ID Numbers; Printable PDF. Even the small displacement 326 CID motor is considered a big block. 120-inch bore of a 400. over the base offering. I was going in this direction primarily for the torque these engines produce. 25″ Reply Jan 14, 2008 · Small and Big blocks refer to Chevy engines only. . Car went throught the traps at 5400 1 day ago · Sportsman Racing Products 146508 - SRP Pontiac 428/455 Flat Top Pistons Pistons, Forged, Flat, 4. Early Pontiac V-8 Engine Cooling. Small Block 265-400; LS Series; Big Block 396-454, 502; W-Series 348-409; 90° V6 (262/4. 7 L) and grew as large as 455-cubic-inch (7. The BOP one piece oil pan gasket works with ALL Pontiac V-8's '59-'81. Mar 14, 2010 · The 400 stroker is technologically superior to the 428 or 455, but plenty of Pontiac fans have built strong motors using both- it just depends on what your horsepower goals are and your budget. 364-425 Nailhead; Cadillac Engines. 10 Nov 2019 No Pontiac first designed their v-8 engine in 1955 is was 287 cubic inches 326, 327, 347, 350, 370, 389, 400, 421, 428 and 455 cubic inches. 427 SOHC- <---BIG BULLSHIT artist in the house the tunnel port heads fit ANY Pontiac engine- from 389-400-421-428-455 all Pontiac blocks are the same, they only differ in main bearing size and bore/stroke. Jul 09, 2013 · the SJ was the big engine option and the LJ is a luxury option. 25 main bearing, and cranks interchange between the three sizes. 26 Nov 2010 Point is, if youwant to build a Pontiac to rev to the moon you can. i. Holes in pulley must be re-drilled, '69-later timing cover & pulley may be required on early models. “I wanted the performance-oriented SJ package because it contained the 428 engine, and I opted for the 428 H. 00 Pontiac Grand Prix in Denver, CO 1. All launches were made at 1200 rpm and shifts at 5200. One belonged to the son of the owner of a local Pontiac store. 65:1 rocker arms; owner-ported 1972 7K3 D-port heads with You have a 421. e. with no oil. And a 428 makes torque, but nothing like a 455. 02 / 1. a 4 barrel GTO. flw file 1970 Pontiac Grand Prix Additional Info: Ultra rare 1970 Grand Prix SJ 455 HO. 1973-1974 Pontiac Super Duty 455 V8. 21 stroke crank with 3. 18" on the 400- also a good idea not to go beyond . , 3/16 in. O. 00 Pontiac Grand Prix in Dallas, TX 4. The Camshaft Comparison. Pontiac blocks with only 2 bolts holes per side were cast before 1970. If its any consolation, you guys did a fantastic job designing this thing. that give 640# for the entire 326/350/389/400/428 The first generation Pontiac GTO was an American muscle car introduced to the automotive world in 1964 and ran until 1967. Using this new serpentine design will totally eliminate any belt throwing and enhance your engine compartment. These engines make are excellent for both street & strip, they can be driven everyday and raced on the Chevrolet Camaro Z28 vs Pontiac Grand Prix 428 HO. ): This gigantic series of V-8's from Pontiac might just be the most  13 May 2015 Pontiac Super Duty 455 V-8. These blocks are manufactured by Kauffman Performance, LTD. Unlike Chevrolet there is no Pontiac big block or small block. in. com/MyCarStoryWithLou On "My Car  Billet Aluminum Pontiac Power Steering Bracket for V-Belts applications. OK with stock parts. Pontiac ignited the classic muscle car era with a stroke of marketing genus. For example, the manual transmission 455 HO's used the same 288/302 duration cam as the Ram Air III. For the 455, Pontiac expanded the cylinder bore to 4. There are no Buicks in the '60s with Pontiac engines. 21 giving a real dimension of 456. Comp. This is a quick block ID for junk yard hunting, etc. 030 & std 455 (4. Icon Pontiac 455 Forged Pistons. 25″ Reply May 10, 2011 · The larger Pontiac engines 421- 4. Edelbrock Part # 2156 Performer Pontiac intake manifold is designed for 1965-79 Pontiac 326-455 c. You can make almost 500ci from a 400, 428 or 455 block with the 4. All of these three engine use a 3. | Browse our daily deals for even more savings! | Free shipping on many items! Under the hood, the two 400 cid V8s carried over. 400 428 455 engine ID. 450 421, 428 and 455 have a larger main bearing "tunnel" down the middle to accomidate the larger main journals on the cranks. This would be disputed by fans of the Buick and Olds engines, who rightfully point out the cast iron (not forged steel) connecting rods used in almost all This online calculator is designed to estimate the change in compression ratio due to a change in bore and/or stroke. 12" bore and the 455 has a 4. They were standard production engines lifted from Pontiac's station wagon line and transplanted straight into the T/A. No Pontiac first designed their v-8 engine in 1955 is was 287 cubic inches and the 455 is basically the same motor with larger bore and stroke. Your 400 Pontiac is just a 400 Pontiac, with the 3. “455” stamping in lifter galley, click picture for Though the low-compression Stage 1 455 was a formidable performance engine, the 1970 Stage 1 455 is the engine that will forever be the best of the best classic muscle car engines. Jan 01, 2006 · This can be a bit tricky, as Pontiac never actually offered a 455 with 9. 00 listings starting at $2,975. Number Six: Buick GSX 455 Stage 1. These engines were available in the following cubic inch displacements: 326, 350, 389, 400, 421, 428, and 455. The '78 400 block is fine for a "mild" build. , 1/16 in. By that time, Pontiac V-8s had catalytic converters and other power-robbing economy and emission changes. 410 111 LS: Pontiac V8 265-455 1955-1981 Advertised Duration: 273/282 Duration @ . The test vehicle used in this series is a 1971 LeMans wagon powered by a relatively mild, moderate-rpm 455 running a Turbo 400 automatic with governor-controlled shifts (5,500 rpm); Edelbrock Performer RPM intake manifold; 800-cfm Rochester Quadrajet; 041 Pontiac-grind camshaft with Rhoads variable lifters and 1. The swap took place sometime in the early  1 Dec 2011 if the 455 crank or block mags bad with a crack, use the 428- i. Like all PONTIAC engines since 1955, the firing order sets is: 1-8-4-3-6-5-7-2, all by turning it counterclockwise. Pontiac V8 . 062 400/421/428 +. They took a well performing 68 GTO, 428 car, 4 speed with slicks. 428 360 wg y2,yy . 5 / 1. The iron used for the 428 block was stronger than what was used in the 421. So now you made me pull out my copy of "Pontiac Musclecar Performance 1955-1979 GTO/Firebird/Super Duty/Ram Air" by Pete McCarthy. The Clevite 77 bearing is good enough for any power level you can possibly build. Small Block LA 318-360 Shop 1970 Pontiac GTO Ignition, Charging and Starting parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. It's a 354. Buick Engines. The following are turn key engines available from Eddies, be sure to call us to get a specific price quote on these engines: a Pontiac 350 Modified Crate Engine - 300 hp for 400-428-455 Block ( NEW OPTIONS ! ) 461-474 cu. for 428 or 455 Block Pontiac Performance from parts to complete dyno-tested engines! Available only as an “over-the-counter” engine, the 428 was the stuff of Pontiac legend. Except under extremely unusual circumstances where the transition between the manifold flange and the head port will be several inches long, the port layouts must match. True Pontiac engines were made by the Pontiac Motor Division. Click Here for Edelbrock Aluminum Head Installation Sheet PONTIAC HEAD CHART CASTING NUMBER YEAR FACTORY APPLICATION CHAMBER VOL# CC'S EXHAUST PORT NOTEWORTHY ATTRIBUTES 528511 1958 370 62 D-Port 1. Oct 15, 2009 · http://www. 1970 Pontiac GTO Ignition, Charging and Starting parts in-stock with same-day shipping. This is a work in progress and not guaranteed to be correct. See more ideas about Pontiac gto, Gto, Pontiac. Mar 15, 2017 · Buick 455 Stage 1 vs. 030, It is running #670 1967 heads with swirl polished REVV racing valves with undercut stems, and Scorpion full roller rockers. com 428 PONTIAC BUILT BY KENNEDY PERFORMANCE LLC TO BE PLANTED INTO A 1969 PONTIAC FIREBIRD. 2012 Dodge Challenger SRT8 vs 2009 Pontiac G8 GT  SD blocks. 5RR: . 87 for deck height volume) *blocks are assumed to have a . Edelbrock's  7 ноя 2020 находился двигатель мощностью 355 л. Some Modification Required to use with Pontiac Engine. Adapting a 6 cylinder, V6 or V8 Intake Manifold from Another Engine. Its easy, it fits, and it won`t break. Therefore, the 389 Tri-power Trophy engine is also based off of the 326 block casting. Finally someone made a 4" stroke aftermarket crank to add to the 4. Pontiac ram air exhaust manifolds vs headers As well as the aforementioned Pontiac 350, available engines for the 1976 Grand Prix included the 185-horsepower 400 four-barrel, now the standard engine in the SJ. The 200-horse, 455-cube four-barrel was now an option for all models. ), but this cannot be seen on an assembled engine. See profiles, photos, and specifications of Pontiac muscle cars. 5 L) Pontiac V8 455-H. 1962 Pontiac Super Duty - 421 It stands without question that the 1962 Pontiac Super Duty was Pontiac's pinnacle year in drag racing, NASCAR and other racing events. Because the 428 was used only in large cars like the GTO and Firebird and featured prominently in NASCAR stock cars, it was quickly replaced by the Pontiac 455 in 1970. Here are features on more than 100 muscle cars, including photos and specifications for each model. Also watch the pilot ID on early pre-1964 389 Armasteel cranks when using an automatic More at Modern GM transmission behind early Pontiac engine Apr 30, 2010 · all 421, 428, and 455’s have a 3. patreon. While these engine versions are very popular, they also have many performance parts available for them which makes them easy to modify and get big horsepower gains. The traditional Pontiac V8 engine was manufactured from 1955 through 1981. The 428, like the 421, is desirable because they come stock with 4-bolt mains. 6cc chambers. V-8 of the early 2000's? 428 c. The Ultra r uns off a standard rotation 1969 or later water pump. Some dealerships had an option to swap the 389 to a 421 from 1964-1966 GTO's. 1973. This trend continued until the end of the 1979 model year when the last W72 400 powered Trans Ams left the assembly line. Il était l'un des plus grands moteurs Pontiac produit, mais il a été utilisé plus pour alimenter les grosses voitures comme la Bonneville, et pas autant pour les voitures de perfo Nov 13, 2017 · You’ve got questions, we’ve got answers. Dyno Results: Camshaft Part # 12-246-3: Designation: XE274H-10: Duration @ 0. As the V-8 continued to develop, Pontiac replaced the 428 with a 455-cubic-inch engine for the 1970 model year. Motor mount holes. 120), 389 can be bored to 400 specs at around . 00 ea. The Pontiac engine is considered by many to be the most performance-oriented of the non-Chevy designs. 5:1, having started with 10. Jun 08, 2009 · The 1975 L75 455 Trans Am was a wise move by Pontiac since it kept the Trans Am on top as performance king. 8 rod, 4. With only five built, … A Pontiac 068 grind will act a bit "wild" in a 350, but act "mild" in a 455. The camshafts used in the Ram Air III and the GTO 455 HO were the same. You use a standard bore 428 piston when using a 421/428 crank in a 400 block, so you can end up with the proper deck height, just as you do when using the 455 piston on a 455 crank. 500" stroke crank in a Pontiac 400 block- although any new part should be installed and Mar 05, 2019 · The Order Process Returning to McKenzie Pontiac in December 1968, Butch began the order process for a new ’69 Grand Prix. From Figure 1 2800 fpm corresponds to 4500 rpm for 389's and 400's. and can be selected below. This page will help you identify the year and size of your Pontiac engine. 1964 to 1969 Pontiacs engines were all 2-hole blocks. with this engine #9796134 / 914007 this is a L68M pontiac 455. 85. For $650. What are you looking for? Back to Top. The . 152 inches and the stroke to 4. It was Admiralty Blue with a white interior, an automatic and was loaded with every imaginable option. If the rumors be true, stay as far away from the outfit you mentioned as possible. 21 and the dumb 4. 420. Pontiac engines were available in many different displacements, ranging from 265 CID to 455 CID. 2495. 200 rod journal. I honestly hope you can profit from your work. Holes in pulley must be re- drilled, '69-  1969 Pontiac GTO Ram Air V specs, 0-60, quarter mile, top speed, engine 1973 Pontiac Firebird Trans Am 455 Super Duty 314 ps, 1691 kg The father had a 428 Ram Air V and put it into a 69 Firebird and gave it to his son (my buddy ) after  COMP Cams® Magnum Roller Rocker set/16 for Pontiac 265-301-350-400- 428-455 V-8 engines (includes 7/16" balls, 3/8" nuts, and 7/16" nuts. 1969 Pontiac 428 YH Code Block $1050. 6 55-60 INT MAN 538177 61-62 389 62 D-Port 1. CC-1411572 . The HorsePower guys prove that by extracting a 400 from a junkyard, machining the block and rebuilding it on a two-thousand dollar budget. C $55. 91 inch valves and a 1. The rear cap area cross-section is square like the cork so it fits perfectly into the main cap with the groove ('59-'72). With this combination we can make over 550hp with incredible torque for the dream machine muscle car. 5. The 400 has a 4. 390-429; 425-500; Chevrolet/GMC Engines. The engines that are currently most popular were manufactured from 1964 through 1978. Pontiac 400 1970 1971 9799914 D170 Date Code Short or Howards Cams, American Muscle Hydraulic Flat Tappet Camshaft, Pontiac V8, 198/207 @ . youtube. Rings: 400/421/428 bore (4. when he burned rubber in a 428-powered 1969 Grand Prix SJ. 040 over stock) and provide a final displacement of 464 cubic inches or 7. The cylinders had been overbored by the shop to measure 4. Retaining the stock 6. They also had a 455. Техпроцесс, нм, 45 SOI. 219: 2. TCI-230001 All 421/428/455 blocks have a "TRANSFER LUG" cast into the block near the distributor hole. Aug 13, 2008 · All engines larger than 400 cid (that is, 421, 428, and 455) use 3 1/4" main bearings. The later blocks are a bit thinner, and therefore flimsy compared to the '70-'75 block (considered the better one). Air Conditioning. Beginning with the first production engines in 1955, Pontiac V-8 engines were cooled by reverse flow meaning the cooling water enters and cools the heads first and then some of the water enters the block and cools the cylinders. 23 Oct 2010 Hey I know this gonna irk some but will a Pontiac 455 fit inside my 71 Cutlass??/. and the 428 grew into the 455 for 1970 when a 0. With the March s One thought on “ Celebrating The “Other” 428 On 4/28 – A Video Bonanza Of Pontiac 428 Power Shredding Tires And Spinning Dynos ” Curtis April 28, 2020 at 10:32 am. Pontiac 428 Caractéristiques 1 Le moteur de 428 pouces cubes Pontiac a été utilisé seulement 1967-69. Pontiac developed a beautiful forged-steel connecting rod for the 1973 Super Duty 455. Apr 10, 2013 - This board is dedicated to Pontiac GTO engines. Fits 389-455 Pontiac engines in the Firebird as well as all other 1966 & up GTO and LeMans chassis. 050, . 00 listings starting at $2,999. The displacement and horsepower race continued and when the now-famed 389 was born in 1959, it came in  As the V-8 continued to develop, Pontiac replaced the 428 with a 455-cubic-inch engine for the 1970 model year. 19 Feb 2015 From 1959 on, engines displacing between 326 and 400 inches contained a main journal diameter of 3 inches, while 421-, 428-, and 455-ci  25 Jun 2020 Pontiac V-8S Engine Max Performance Manual 326 301 350 389 400 421 428 455. 326, 389, 400, 421, 428, 455 V8. 00 listings starting at $2,995. 17. This code will tell you the year it was to be used. 00 listings starting at $17,900. 25″main journal diameter; all 265 and 301’s have a 2. Reputable Pontiac shops include central virginia machine, sd performance, spotts, pontiac dude, len williams. engines $35 Crank Pulley #480509 Single Groove XS GTO Firebird 400 - 428 c. 006": 274° / 286° Duration @ 0. O decal on the Shaker Hood Scoop but were not anywhere near the same engine as the 71–72 H. 0625" distance. Muscle cars came in many shapes and sizes. Ядро, Rana. There are many different pontiac engines, most notably the V8 small block versions like 301 and 350 cubic inch and the big block V8 pontiac motors such as the 400, 428 and 455 ci. 00 inches in the 326, 350, 389 and 400-cu. Big block Pontiac crate engines are also available in 428, and 455 versions. Note that Pontiac normally overrated the compression by about . For a heavier street car, stroking the 400 to 461 is an instant "success". A "bigwhatever" Pontiac is a 421, 428, or 455. 1973 Pontiac Firebird Trans Am 455 Super Duty 314 ps, 1691 kg. Components are interchangeable from each displacement, other than 265 & 301, which are only compatible with themselves. Join millions of people using Oodle to find unique used cars for sale, certified pre-owned car listings, and new car classifieds. TCI-230000 Adapter - Chevy engine to BOP transmission . com. Two-bolt main blocks are fine. Частота, МГц, 3300. PontiacRegistry. 421 is a different casting, as it has a larger main bearing diameter, similar to 428 and 455. # 1. Dyers Blowers is one of the leading manufacturers of street strip superchargers. A kick ass / durable V8 motor that was produced by Pontiac Motor Division from 1968 to 1977. 88 I take my information from the June 1995 issue of High Performance Pontiac. *Pontiac 455 compression area = 25. Cleaned, magnafluxed & ready to ship. 00 428/375 HP 4bbl V8 Engine. Cadillac Engines Ported Vacuum vs. Originally a trim upgrade based on the Tempest , it spawned the industry changing signature muscle car, the GTO , in 1964. The 455 was rated at 360 hp (270 kW) at 4,300 rpm. Would consider 400, or 421,or 455 pontiac engines. 050": 230° / 236° Max Lift w/ 1. Free shipping. Pontiac V8 Firing Order Having had friends and family with various Firebirds and Trans Am, yes even a Tempest, I'm finally catching on posting an EZ-Read firing order for the Pontiac V8 engines. Rated at ~ 200 hp. 150) Heads May 10, 2011 · The larger Pontiac engines 421- 4. 11 / 1. Dist. Similarly, a 421/428/455 share a 4. ) pontiac 455 engine torque specs, The 421 Super duty has smaller valves ( 2. ) P/N 1451- 16. Choke element was mounted on the intake manifold and connected to the carburetor by rod. Jul 06, 2009 · Stock Pontiac Head Flow Head Casting Number: Year: Notes: Porting: Intake Lift: Intake Flow: Exhaust Lift: Exhaust Flow: Download Desktop Dyno 2000 . In this week’s Mailbag, we’re recommending a parts combo to get 400+ horsepower from a Pontiac 400 engine in a 1968 Firebird. The 400 V8s remained the same, at either 265-hp with the 2-barrel carb or 350-hp with the 4-barrel. " The authors employed the services of Jim Taylor to assist. Pontiacs are "torquers" not high revvers anyway. **455 SD only fits with SD rods unless you internally mill the pin boss. Tri-power. с. Total 1969 Pontiac GTO production: 0 Features trap door, baffle system and increased oil capacity to ensure ample oil supply. SJ badges, lamp group, larger tires and the 455-cubic inch V-8. The Pontiac LeMans / l ə ˈ m ɑː n z / was a model name that was applied to subcompact-and intermediate-sized automobiles marketed by Pontiac from 1962 to 1981 (1983 in Canada). WIP: 1949 Chevrolet Styleline Special Sport Coupe. 150) Heads Edelbrock P303 3-2 Intake for Early for Early Pontiac: 1967 400 – 428 4 BBL. That is the reason the actual compression for 428’s is lower than the 400’s in some cases. I believe it was derived from the old 428, but am not sure. 1968 Pontiac 400 428 All models Pontiac, Tempest Manual Trans 4MV, This is divorced choke (remote choke) style 4 barrel Quadrajet carburetor. $30 Water Pump Pulley # 480510 XU 7 3/4 inch diameter 1 Groove 350 - 400 $30 Heater Hose Bracket 1965 - 1979 $20 Emergency Brake assembly avec cable great show shape $55 Cowl Vent grill $40 Door Looking for,1st choice pontiac 389 short block,or complete engine. Convertible 7,328 ^Judge^ Hardtop 6,725 ^Judge^ Convertible 108. Find 12 used 1969 Pontiac Grand Prix as low as $23,995 on Carsforsale. Std. In 1958, the Pontiac V-8 grew to 370 cubic inches. Arp 190-3605 Cylinder Head Bolts - Pontiac 400-455 Engines W/ Edelbrock Heads. Rebuilt 428 overheating at idle and low speed (1/1) - Technical - Engine - Pontiac 2+2 Registry Forum The engine is based around a 1970 Pontiac 455 4-bolt-main block and #64 cast-iron heads with 92. Adams’ team cleverly disguised the new motor as a warmed-over version of the high-volume production 455 in Pontiac’s parts bin, but in reality, the SD-455 more closely resembled a detuned race motor and shared very little in common with the more pedestrian Must be the same as bore, stroke, & head series. 1971-72 Pontiac 455 YA Code Block sold. Complete 8 Rib Serpentine system for the Pontiac engines with alternator and power steering. 3 left. The car rumbles with a stout 455 HO engine, 325HP HO block with #96 d-port heads, topped by a functional ram air induction setup. (Pontiac also built one 1976 Grand Prix with the as-yet unreleased 301-cubic-inch V-8. Although these blocks are few in numbers, they can be found and can also be totally custom rebuilt to any specific horsepower. “455” stamping on drivers side front of engine, click picture for larger image Photo courtesy of Rob Conrads. Mar 31, 2020 · Technical PONTIAC V8 TECH - 389 vs 421 Blocks. 09375" bore versus the 389's 4. Available in Standard, High Efficiency, High Efficiency Tripleflow, and Optima Tripleflow core styles. In a Pontiac, the torque is most efficient in the rpm range in which you drive. The last Pontiac had small journal and large main bearing journal engines, although the deck height was the same. in. The modifications make Stage 2 heads a great choice for a serious street car or Pure Stock-type competition use. Apr 13, 2016 · How to Pick the Best Pontiac 400 or 455 Block for a Modern Performance Rebuild. 74 or a 355 rounded up. The 421 was punched to 428. Below are just some of the pump gas builds we have done over the years. Firing Order Hardtop 58,126. GM FoMoCo MOPAR Gaskets A GTO with the standard, puny, 400 cu. Introduced for the first time in 1969, the ‘Judge’ option was the highlight of this year’s Pontiac GTO. 95. Buy 1959-81 Pontiac 265-301-326-350-389-400-421-428-455 V8 Oil Pan - UNPLATED: Engine Parts - Amazon. The 350, 400, and 455 are interchangeable but today most Pontiac enthusiasts want the 455 with aluminum cylinder heads. , мощность 360 л. The Pontiac 350 is not an engine most people want" Pontiac V8 Serpentine Belt Sets $ 659. 030 over bore and heads cut . In light of this, the 'Year' entry, as indicated by the chart below, may actually represent the year that the heads were cast, versus the year that they were actually installed on an automobile. March Performance CNC machines each part from solid 6061-T6 billet aluminum for extra strength and wear. You could call 'em "big journal" Pontiacs, but that never caught on. Pontiac V-8S 326 301 350 389 400 421 428 455 Engine Max Performance Manual. That year, sales dropped to 65,750 units despite the introduction of the new 455-cube/370-horse V-8, and by '71 the Pontiac model that spawned a white-hot luxury car performance revolution began All 350/389/400/428 and 455 with same flange will interchange. In 1969 there is NO 455 engine. Buick nail head: 364 : 3. Pontiac 455 Pistons. AU $1,021. These cars came with a 455-H. Rocky Rotella The information below reflects the research conducted by Pontiac enthusiast/ author Pete McCarthy, much of which is from his book, Pontiac Musclecar Performance 1955-1977, as well as information gathered from many other Pontiac enthusiasts world-wide. The motor has a bore size of 3. Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump. 5 Intake Exhaust Advertised Duration 428 455 370 421 265 287 301 350 428 455 Being that we are an exclusive Pontiac engine builder, we know what it takes to make reliable pump gas power in our Pontiacs. IMO, 400 is the best place to start for a performance build. Then Buick had the old nail valve 401, not a bad Stage 2 ported heads (428-455 cubic inch motors) At 245 cfm (at 28"), our Stage 2 "D"-port heads' intakes flow comparably to factory Ram Air IV heads, while our exhaust ports are lightly cleaned-up. MR-1 and MR-1A Aftermarket Pontiac Blocks At Tin Indian Performance, we offer both the MR-1 (cast iron) and MR-1A (aluminum) aftermarket Pontiac blocks. As the muscle-car era was coming to a whimpering halt under the weight of stringent emissions standards and the  7 Aug 2014 By 1968, the Grand Prix had grown bloated, but the 428 HO still offered performance for those who wanted it. 870,081 total vehicles produced by Pontiac in 1969. pontiac block codes. Joined: Jul 7, 2003 Posts: 1,753 for 400-428-455 Block ( NEW OPTIONS ! ) 461-474 cu. Pontiac was on top of its game in 1962, following a mandate handed down by the officials of the NHRA, vehicles wanting to race in the Super Stock class must be Factory released. This would be disputed by fans of the Buick and Olds engines, who rightfully point out the cast iron (not forged steel) connecting rods used in almost all Pontiac 1968 400 428 4 speed 7028263. Bore Diameter: 1. Back in the day The Pontiac 455 V-8 was actually a bored out 428-cubic-inch V-8 with a bore and stroke of 4 inches by 4 inches. 3L) Oldsmobile Engines. com®. 390-429; 425-500; Chrysler Engines. 060" or larger bore. The Edelbrock #61599 Performer Pontiac Cylinder Head utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems. 875 inches and has a stroke of 3. 250, but the fool things have a 2. The 455 powered the Pontiac GTO and Firebird. Find 1970 Pontiac Grand Prixes for Sale on Oodle Classifieds. : скорость 203 км/ч. ChevelleStuff. 75 inches, making it really 354 cubic inches instead of 350. 25 stroke in a 3 inch main block such as your 400. 1976. This is your chance to buy one of the best and rarest Grand Prix's ever made that is in immaculate condition. 3720" Degree Marking Range: 50 BTDC to 10 ATDC. Let me know what u have please. The second was Cameo White with a tan interior, an automatic and AC. Nov 27, 2017 · Pontiac blocks are interesting power plants that are often misunderstood and improperly identified by sellers and buyers alike. Pontiac 326-350-389-400-428-455 10. 57 + head cc (assuming 6cc for valve relief, 9. But the SD-455 is a whole new breed of car, not just an engine. $239. 190-inch (. 1974 Pontiac Firebird Formula 455 Series 2FU (L-75) Hardtop Coupe 1974 Pontiac Firebird Formula Super Duty 455 Series 2FU (LS-2) Hardtop Coupe There is no shortage of Pontiac rods bearings. Cleaned IGNITION . DON'T SELL ANYTHING https://www. 1525 X 4. Additional timing/degree marks at 90, 180 and 270 Mar 14, 2012 · It was used in all production Pontiac V-8s from 1967 through 1979, except for the SD-455. Any heads will interchange from 1955 to 1979 the tunnel ports will even bolt onto the earlier 326-350 Pontiac Pontiac Firebird 1997-2002 Workshop Service Repair Manual VN VR VS VT 4L60 4L30E AUTO GEARBOX WORKSHOP SERVICE MANUAL VN VR VS VT VX VY 4L60 4L60E 4L30E GEARBOX WORKSHOP MANUAL Pontiac 428 V8 1969 4. $64. Measure for the 4. The 455 SD is not the most powerful engine Pontiac built, due to lower compression. 000" 4. I'm just looking for commentary on the pros and cons between these engines. 00 listings starting at $2,000. In 1969, Pontiac GTO shunned the old side vent window for the first time. Pontiac Grand Prix in Chicago, IL 9. However, these codes were used over from year to year. Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981. This motor is rare for any Pontiac (only available in full-size models since It is kind of like a Tri Power GTO vs. 625-inch length, the quality steel forging was heat treated and blasted with metal shot to improve strength while being magnetic particle inspected High Performance Pontiac Parts. (10k Chevy vs 10k Buick vs 10k Pontiac vs 10k Olds. The block is a 69 428. 25" or 4. 1973 Pontiac Grand Am 455 Heads 4x 1h Date Code K292 . Internal balance. What parts Pontiac One-Piece Oil Pan Gasket. Since all Pontiac engines must be considered a "big" block, the 455 is not new or unusual in the Firebird chassis. Net doesn't indorse either method and there is a lot of discussion as to which is better. Bonneville Brougham Package. 00 Pontiac Grand Prix in Detroit, MI 5. His son said he owned the car for about 30 years. Another Jun 05, 2009 · Let's see, Pontiac had the 389 which became the 400, and the 421 was a larger version. They are assembled complete except for manifolds, distributor, valve covers, and water pump. It wasn’t oversquare like the 455 and had a better stroke Most Pontiac V-8s were originally fitted with cast-aluminum pistons, and they operated quietly and consistently. Pontiac engine blocks cast in 1967 through the last casting in 1978 have 3 freeze plugs on each side. 030. Pontiac 400 428 455 Engine Codes. MAXX 171 Copper Exhaust Header Gaskets 55-79 Pontiac 326 350 389 400 421 428 455. 326-350-389-400 were small journal, 421-428-455 were large journal, 3″ vs. Popular Pontiac Vehicles 2010 Pontiac Vibe 2009 Pontiac Torrent Classic CARS by Year. 250 Stroke, Eagle 6. Crower: 60240: 270: 276: 210: 221. 00 inch stroke. 625 H-beam rods, Total Seal file fit rings, FM rod and main bearings. Just a interesting note, the 350 Pontiac engine is really a 355, the 428 engine is really a 427, and the 455 is really a 456. 967 : 425 : 3. Sep 21, 2012 · The same goes for the 428 built from 1967-69-if you have one or can buy one cheap-by all means do so. Cleaned Pontiac had small journal and large main bearing journal engines, although the deck height was the same. We also know that horsepower is torque times rpm. CID: Contents: Bore size & Cart: 462-469 cid: Eagle cast 4. 1969 Pontiac GTO Ram Air V 532 ps, 1575 kg. 6 Cylinder Engine. Back in the day Dec 24, 2018 · The Pontiac Version of the 455 . 's. Pontiac planned to produce the 1953 models with the V8, but Buick and Oldsmobile appealed to GM management and earned a 2-year delay. High performance Icon Pontiac 455 forged pistons are premium quality pistons that are available for a very reasonable price. He was in the process of restoring the grand prix. The letter is the month, next 2 digits are the day and the last digit is the year. This Tech Tip is From the Full Book, HOW TO BUILD … Mar 29, 2017 · The key to maximizing the performance of any combination is proper component selection. a 390 horsepower 428 cubic engine was installed in place of the 400 cubic engine. They are painted Pontiac metallic blue unless you request otherwise. 20 Topics: ENGINE BUILDS , CHEVY , featured , ENGINE TECH , Theory and How To Jan 15, 2007 · The big change in the 1970 Grand Prix was a new engine. 151" bore, but the most you can go is 4. We added the tabs ('73-'76) and most after mark et pans Canton , Milodon, etc. 21-inch increase in stroke was added to  16 Jul 2009 As I mentioned, swapping a 428 into a 2nd gen is not a drop in, I don't know of anyone doing it because of cost VS 455, there were far more  13 Aug 2016 If you enjoy the videos and would like to Sponsor me on Patreon, my Creator link is https://www. Pontiac did this to try to boost sales Therefore. Most of the pontiac strokers run a 6. This 1967 Pontiac Firebird Convertible features a 1975 455 block bored . Oct 20, 2003 · The GTO did not come with a 428 because of the ban GM sent down to the divisions on 400ci or less on there intermediate sized cars. 060" on the 455 either. Peak horsepower for this VE curve occurs at 2800 fpm MPS where VE = 0. With only five built, … Vehicle Description. Original California Car - 1969 Pontiac Grand Prix SJ - Numbers Matching 428! Numbers Matching 428 S $28,995. By expanding on the approach that Pontiac took when assembling combinations for its production vehicles, selecting components that compliment the operating characteristics of one another for a particular application, you typically produce a powerful engine that operates efficiently and reliably over a … DCI 400-455 is DCI’s most popular crate engine. 5: 455: V8 - 70-71 : Block#9799140 If its any consolation, you guys did a fantastic job designing this thing. 5 point. The Edelbrock #61569 Performer Pontiac Bare Cylinder Head utilizes a D-Port exhaust port configuration for use with standard D-port exhaust systems. В итоге Pontiac Trans Am стал куда более ловким и быстрым на треке, Oldsmobile установил в свой 422 двигатель объемом 455  30 Oct 2017 Ron Knuteson would never go as far as calling his 1970 Pontiac Grand Prix an ugly duckling. V-8 re­moved and the full, top-of-the-line 428-incher inserted—with enough fiddling in­side the replacement engine to bump the output up some Oct 23, 2009 · In addition, 1968-69 428s received two additional displacement identifiers, a cast “428” on the side, and a “28” cast into the center lifter valley rib. Though the low-compression Stage 1 455 was a formidable performance engine, the 1970 Stage 1 455 is the engine that will forever be the best of the best classic muscle car engines. 010. Pontiac engineered a number of intakes with both single and dual four-barrel carburetor arrangements to make them better suited for their intended use, be it the strip or Nov 11, 2020 · The 400-cid Pontiac V8 that bowed in 1967 Pontiacs was a bored-out version of the 389 and a new 428 was a bored-out 421. 487" / . Here are 2 examples: A249 code "XE" A = January - 24 is the 24th day - and 9 is 1969. d. Pontiac Part Number Grind Lobe Center Duration @ . 00 use the same crank, The 455 dimension of 4. Laying out $3200 for a brand new Pontiac block is a no brain-er. Ok, this is'nt easy, but check out the number of drilled motor mount holes on the block. J 28 68 Oct. 1955-1958 blocks had no side motor mounts, they used a mount under the timing cover All blocks prior to 1964 had the casting number on the passenger side of the block. Bottom end. Множитель, 16. Valve Cover Breather Seal - Each VPAGST4 vintage parts usa muscle Re: Boss 429 vs. 50* Pontiac : 7. May 14, 2013 · There was a time when forged rods were expensive and rare for Pontiac, so they used BBC rods instead, now its kind of a moot point except for bearing speed with high RPM. The brand was introduced as a limited production performance convertible during the 1957 model ye The traditional Pontiac V8 engine was manufactured from 1955 through 1981. Early Pontiac blocks, (326-428) 69 and back, can easily bolt into a GM truck, 60-87, but the 70 and newer blocks (350-455) have a center boss that the motor mount can bolt to that makes it even easier to bolt in. "He didn't mention access to other Pontiac engines at the time. Pontiac V-8 Camshafts Sorted by Type and Intake Duration ; Good street performance cam for 350-455. Please I always felt the 428 was about as far as that engine should have been taken. 5:1. HTT/Bclk  Pontiac Bonneville V8 400/428/455 Radiator. 490" Cast Iron Water Pump 11 Bolt #488296 1969 - 1979 350 - 400 - 455 c. Original casting numbers on Manifolds: LH 490803, RH 490802 Exact Reproductions from GM blueprints. The first generation came in multiple 2-door options including, the 2-door coupe, 2-door convertible, and 2-door hardtop. Количество ядер, 3. 0-60 mph 1969 Pontiac Grand Prix 428 H. Oct 04, 2015 · The big Pontiac Ram Air 400 was also a victim of underrating, advertised at 366 HP at 5100 when in fact maximum power is 410hp @5600. 25" Main- Cast Crankshafts for 421/428/455 Blocks a 4. Along with the successful bid came a set of 66 GTO grills, a bag of bolts, a set of polyurethane bushings and a desire to make things happen! The Pontiac engine was supposed to be a 455. In 1973, the Ventura got the Pontiac 350 instead of the Chevy 307; in 1975 it got an Olds-built 260. Complete Pontiac Tri-Power Setup (Limited) Must be the same as bore, stroke, & head series. The Buick GSX 455 Stage 1 has recently been recognized as one of the great muscle car engines of the 1960s and early 1970s and is enjoying a revival of sorts. 66 inch exhaust. Don't miss what's happening in your neighborhood. Pontiac also engineered a 366 cid engine to be used in NASCAR, a 400 cid version for use in production GTOs and Firebirds, and a 428 cid version intended for NHRA drag racing. Pontiac’s Super Duty 455 cubic inch V8 was never considered a big-block V8. 12 X 4. WIP: 1950 Pontiac Deluxe Station Wagon. CUD364. The article is entitled, "Four Barrel vs. 76 ) than the high performance 350, 400, 428, and 455 high performance engines which are 2. Before Tom made any bids he got to test drive and inspect the car thoroughly. Muscle cars created their own culture. Forged-aluminum pistons were specified to improve the reliability and durability of Pontiac’s very high performance engines such as the Ram Air IV and Super Duty 421 and 455. 1969 Pontiac Grand Prix Base Additional Info: 1969 Pontiac Grand Prix SJ 428 I bought this car about a year ago from a family that the father had passed away. Factory Intake Manifold GM PART #9786286, for Q-JET Carb. 50″ main journal diameter; all large journal crank shafts have a 2 3/4″ flywheel flange. com/watch?v=gB9xv8njvdc The Pontiac V8 engine is a family of overhead valve V8 engines manufactured by the Pontiac All Pontiac engines (except the 303 Ram Air V engine and 265 and 301) All 428 cylinder heads received the 14 degree valve angle, closed chamber Oldsmobile and Buick also had '455' inch engines about the same time. 27. com, the ALL Pontiac Club for ALL Pontiac Lovers– dedicated to the preservation, restoration, and enjoyment of all years, models, and types of Pontiacs. Ordered with the optional HO ( High Output ) 370 HP original engine this 70 GP is one of the most powerful Pontiacs ever produced. Bonnevilles were full-sized, with the exception of a brief period of mid-size between 1982–1986. The Pontiac 400 cubic inch motor (made between 1967 and 1979) is still a great platform for a high performance daily driver. The mistake Pontiac made with the ’75 L75 Trans Am was marketing the package as the 455 H. Length Rod length of the connecting rod, as measured center to center, in inches. 3. all pontiac cranks from 326 thru 455 used the same flywheel bolt spacing and are interchangeable. Pontiac stuck with the 350-, 400- and 455-cid V-8s with up to 300 net horsepower (a new rating system). 6 сек. Pontiac engines were last produced and used in 1981. 0, 428- 4. on their own in house CNC machine. 75-inch intake/exhaust valves, and increased compression from 10. Another example is: K109 "WA" K = October or November - 10th day - 9 = 1969. will fit any 1965-71 Pontiac V8. 050" Intake Exhaust Gross Lift 1. The 455 engines are built with stock block, crank, rods, and 6X head castings. 376 wj,xk y3,yh,yk yz 370 wh,ww xn,xp 455 360 wa yc,yh 370 wg xf 1971 350 250 wn,wp,wr,wu yn,yp,yu,xr 400 265 ws,wx yx The 428 engines also had pistons with dished tops and value relief’s in order to lower the compression so the 400 heads could be used. The blocks of all Pontiac V-8s from the 287 to the 455 are the same size and very close to the same weight, which can make it more difficult to identify the 11 different engine displacements produced from 1955–79. 9 ft lbs of torque and 630 horses to help it run free on the road. That aside, most of you will be using the 400 or the 455. Apr 20, 2015 · Olds 455 Vs Pontiac 455 Vs Buick 455 Home › Forums › Stay Dirty Lounge › General Automotive Discussion › Olds 455 Vs Pontiac 455 Vs Buick 455 This topic contains 34 replies, has 7 voices, and was last updated by gary w 2 years, 9 months ago . The 455 cid V8 had a four barrel carb and was rated at 370 bhp and a staggering 500 lb-ft of torque. 1959-1979 Pontiac / Oldsmobile. 98 The result was the Super Duty 455 V8, a name which was a nod to the company’s successful early 1960s efforts in NASCAR and the NHRA. The ‘Judge’ with its bold colors and powerful engines became an instant hit with the younger muscle car enthusiasts. The 421, 428 and 455 had a larger journal crankshaft, and these are the only engines that can even be remotely identified as a big block, but that is a misnomer. Starting in 1965 Pontiac The ‘Judge’ with its bold colors and powerful engines became an instant hit with the younger muscle car enthusiasts. Displacement began at 287-cubic-inch (4. Royal Pontiac, located in Royal Oak, Michigan, offered a 428/Royal Bobcat conversion of the 1968 GTO. The 428 and 455 do carry the liability of the larger main journal, but the longer stroke and the ability of either engine to make good torque and lower A Pontiac 455 is more responsive than a Chevy or a Ford. 25:1 in 1970 and skipping all the way down to 8. Motor: Size: Deck Height: Bore: Stroke: Rod Length: Rod Journal: Rod Width: Max. This car began life as a Lucerne Blue Lemans Sport. The 428 vanished, its powerful spot taken up by the new 455 V8, supposedly the largest engine ever put inside a Grand Prix. The top 400-cid V8 was a four-barrel edition for the GTO that had the same 360-hp rating as the previous year’s 389 Tri-Power version. bore now, bore to . Manifolds are 455SD design (the largest Round Port design). 21 inches. 2:1, and finally to an insulting This means you can put a 455 in about any Pontiac car with that car's motor mounts, but if you want to use a 428 block in your 1970- Firebird you'll have to modify the frame mounts or make an adapter. 25" main journals, Keith Black Forged 15cc dished Pistons, Eagle 6. 5:1, then to 8. 25 inches in the 421, 428 and 455 displacements) and "small journals" (3. , разгон до 100 км/ч. Information about PMD heads is still being gathered. The SD455 and the RAIV were awesome engines on the street but this engine had as much if not more potential. The Pontiac Bonneville is an automobile built by Pontiac from 1957 to 2005. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. Get the best deal for Gaskets for Pontiac Star Chief from the largest online selection at eBay. This was a car that could be ordered through Royal Pontiac. 300 bolt circle. 455 cu in (7. 5" crank. These motors usually have a  428 пропозиції → RIA зібрано більш ніж 455 відгуків відгуків про Крайслер будь-яких років, комплектацій та модифікацій, які призначені допомогти Вам  Carter M4868 Pontiac 350 400 428 455 Muscle Car Series Mechanical Fuel Pump-Carter Direct Replacement For Pontiac V-8 From 1969 Through 1972. Also, heavier vehicles, and vehicles with low numerical rear-end gearing will be better off with a lesser cam duration, where lighter vehicles, and vehicles with higher numerical rear-end gearing can get away with a greater duration. 1970 Pontiac Bonneville Specifications and Photos, 0-100/h, 0-60mph, fuel consumption, horsepower, weight, specs and photos In 1961 Pontiac continued to push the horsepower upwards with the release of the 421 engine. It hit 370-hp and 500 lb-ft of torque. T-Buckets Only. 265, 301, 307*, 326, 350, 389, 400, 421, 428, 455. Dealership Showcased. However, these codes were used for more than one year and could have different machining or even different main caps. This 428 will be turning heads and swooning damsels with its almighty 654. и объемом 428 кубических дюймов. That is, under 600 horsepower. 70 GTO 455 (360 hp) T-400, ----- 13. If so equipped, the Royal Bobcat GTO RAM V came to the Royal Oaks dealership hollow from the assembly line. The higher output 428 engines featured 1. $5. Books: Jim Hand. Buy direct from the manufacturer and save up to 55%. 1969 Pontiac Grand Pontiac ram air exhaust manifolds vs headers. Apr 30, 2002 · This Cyl Head information was gathered from MANY sources including the Pete McCarthyBooks, HO Racing Books, Q&A on www. com ✓ FREE DELIVERY possible on eligible  23 Aug 2019 The 421 and the ram air versions of the 400 and 455 get all the credit these days which is fine but we still like to see people build these engines  Welcome to the most complete Pontiac 0-60 & quarter mile times resource online offering a 1971 Pontiac Firebird Trans Am 455 H. 21-inch increase in stroke was added to its crankshaft. The 6X head was installed on the 350, 400 and 455 Engines during the mid to late 70's The Boss Stamping to determine the cc's of the 6X heads are as follows: A # 4 is 91 cc's (Installed on both 350's and 400's) Sep 23, 2006 · Stock Pontiac Head Specs * During my searching for information, I found quite a few discrepancies in the sources I was viewing. In 1967 the engine was used to   13 Apr 2016 The basic 400 continued through the 1978 model year, and the 428 grew into the 455 for 1970 when a 0. Разъем, AM3. Manifold Vacuum. Dyer Blowers manufactures, sells and services 471, 671, and 871 kits for Chevy, Ford, Chrysler, Mopar, Dodge, Plymouth, Pontiac, AMC, Buick and Oldsmobile V8 Engines. By Larry Gorden December 2007. Made in the  Характеристики автомобиля 1970 Pontiac GTO 455 H. The Official Pontiac 2+2 Registry. for 428 or 455 Block Pontiac Performance from parts to complete dyno-tested engines! Pontiac 1965-71 350 400 428 455 Call 1-800-994-2272: Pontiac: Manifold Only (Limited) 1966 Tri-Power Aluminum Intake Manifold Aluminum reproduction of the original cast iron 1966 Tri-Power intake manifold. 405/. 88/1. I don't know the author so I can't give valid credit. The 455 The bore -- the width of the pistons -- changed, but the stroke, or the distance the piston travels, did not change. 00 Pontiac Grand Prix in Columbus, OH 5. kennedyperformance. Q: I want to build a Pontiac 400 engine for my 1968 Firebird. Call - (804) 794 - 6777 Fax - (804) 379 - 7490 To Place Your Order . In an effort to keep things simple Pontiac designed all their V-8 engines around the same casting. 40 : 401 : 3. The engine is back by a TH400 trans and Posi ten bolt rear end. They feature optimized oil return passages for increased oil flow. The extra cubes were added to mask the fact that Tri-Power options were no longer offered. 050": 198/207 Aug 29, 2000 · Pontiac except 301: same external dimentions, but the "big" ones have larger main journals. 7cc for head gasket, 2cc ring area, and 7. They rev up like a 400 and make almost as much torque as a 455. $25. ) Наименование, Athlon II X3 455. Engine Details. ; Wt Weight in grams, of one complete connecting rod assembly part # year: bbl: size: tran: notes: 7011350: 1957: 2: 347: a: tripower center: 7011351: 1957: 2: 347: a/m: tripower front: 7011352: 1957: 2: 347: a/m: tripower rear That year, sales dropped to 65,750 units despite the introduction of the new 455-cube/370-horse V-8, and by '71 the Pontiac model that spawned a white-hot luxury car performance revolution began Dec 10, 2005 · My stock 350 2 barrel pontiac motor with everything on it was weight at my uncles job at 668 lbs. 5 L) by 1970. 64 Find 12 used 1969 Pontiac Grand Prix as low as $23,995 on Carsforsale. Wrist Pins: 1955-1957, 1958-1962, 1963-1965, 1966-1979 Some of the SD series pins are longer. I was wrong on the years the 428 was produced, it was produced in the late '60s, 1967 to 1969 to be exact. This purchase Introducing the Pontiac "Ultra" outward mount one belt drive system. The 428 CI engine was disassembled and blueprinted to produce more than the advertised factory 390 horsepower and easily spinning to 5700 RPM's. They are designed for 1962-79 389, 400, 421, 428 and 455 c. pontiac 428 vs 455

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