Pontiac V8 Displacements. By 1963 Pontiac decided it was time to release the 421 V8 officially to the general public and the motor would continue to be available until the end of the 1966 model year. The casting numbers can be found in different locations depenging on the year of the block. Free shipping. Only 877 built It has a 421 engine with an M-20 4 Speed transmission with the safe-t-track differential. Pontiac V-8 crankshaft part numbers and specifications 1955-1981. Pontiac Performance Crate Engines. 1966 Pontiac Ventura Specifications. Please browse our crate engines listed below or custom design one of your own. Rocker Studs (screw-in) Engine Oil: 55 ft-lbs. Find the best deals for used pontiac 421 engine. 5.0 out of 5 stars. Engine oil. 1966 Pontiac Catalina 2-Door Sedan 389 V-8 2-bbl regular Hydra-Matic (aut. Vehicles with Similar 12.37 HP/Weight Ratio. Location. 1966 Pontiac Engine Data. 20 Pontiac from $4,197. The car is considered as the very first muscle car. Engines offered with the 1965 Pontiac Grand Prix included a 389 and 421 cubic inch V-8. #5416090 DC L261. It means you're looking at a sleek, loaded, powerful, and rare coupe that's perfect for the enthusiast looking for true distinction. 468 cubic inch pontiac 4 bolt main caps. 1966 Pontiac GTO. Torquing the adjusting nut per the old Chilton's to 20-25 ft pounds won't work on any heads that have been milled. Location Of Engine Code: (Six-Cyl) - On cylinder head-to-block contact surface behind oil filter pipe. Myth No. Pontiac V-8 crankshaft part numbers and specifications 1955-1981. Powertrain specs engine type pontiac v8 421 displacement 6.9 l (421 ci / 6899. The 421 H.O. View the Pontiac Engine Torque Specifications for engine repairs and rebuilds. Engine options for the 1966 Pontiac Ventura were a 389 and 421 cubic inch V-8. The 1966 Pontiac Bonneville measures 80.70 inches in width, The 1966 Pontiac Bonneville measures 221.80 inches in length, and has a wheelbase of 124.00 inches. The first featured the standard camshaft and exhaust manifolds and was rated at 350 bhp. It tips the scales at 3,950lbs. Released in 1961, the 421 was a bored and stroked 389 which sported a bore of 4.094″ and a stroke of 4.00″. 5.0 out of 5 stars. Feel free to contribute. When Pontiac introduced the 2+2 in 1964, it was a trim package featuring a 389 two-barrel, bucket seats, and console. Engine Oil: 120 ft-lbs. Powertrain specs engine type pontiac v8 421 displacement 6.9 l (421 ci / 6899. seemed to be a natural fit for the new GTO, but GM’s power-toweight- ratio standards limited maximum engine size to just 389, so Pontiac simply created a 348-hp 389 using components familiar to the 421 H.O. 1955 – 1963 casting codes are found on the passengers side of the block. With a view to the latter, what we find lurking under the hood is the 421ci Tri-Power V8. Saf-T-Track differential. Tri Power 376 horsepower 1966 Pontiac 2+2 421 H. O. Tri Power engine 376 horsepower with 4speed Muncie transmission and 3:42 posi-traction rear end. Engine Oil: 95 ft-lbs. This 356hp monster is backed by a 4-speed manual transmission, while the Pontiac also features power steering and power brakes. That is an extraordinarily low take-up rate in a car of this type. Check out the engine build on this Pontiac and the step-by-step in this hands-on article. Ramsey, MN … First is my 1966 Grand Prix with a 421 Tri-power. Engine, horsepower, torque, dimensions and mechanical details for the 1966 Pontiac Grand Prix. Pair Pontiac V8 Long Branch Exhuast Manifolds $575.Great condition originals. - Pontiac 301 326 389 400 421 428 455 V8 HEI One Wire Distributor Red Cap Complete. Pushrods: 1955-1960, 1961-1966, 1967-1976 (* … Comments or ideas--email me at bboyle@boyleworks.com. V8s produced 353 and 370 hp, but the hottest options of all were the 390-, 405- and 410-hp versions of the 421 Super-Duty V8. 9 product ratings. 389 Pontiac Engine Build Article by Mark Trotta. 63 catalina gray ghost bfx legendary pontiac … Very nice 383 cu in V8 engine that starts right up and sounds great too.... More Info ›. The car was delivered to Adams Pontiac in Freemont, ebraska and was delivered on December 28, 964. It's a loaded 58,000 mile original mile car featuring the top engine option: the 421 HO 376 Tri-power, YK block, with a TH400 and a 3.42 posi and a RA-IV cam. The 1966 Pontiac Ventura doesn’t necessarily come up when speaking of 60’s muscle cars, but the type of V-8’s offered with the Ventura meant plenty of power. CC-1475461. Beginning in 1961 the Pontiac V8 389 (and 421) was dubbed the Trophy … In 1933 and 1934, Pontiac built only eight-cylinder cars, but they used a straight-eight rather than a V-8. Unfortunately, that's what happened with the 1963 Pontiac Super Duty 421. Super Duty 421s were back, tougher than ever. Compression jumped from 11.0:1 to 12.0:1, while other tweaks increased maximum shift points by 500 rpm, to a screaming 6400 rpm. The four-barrel version, set up for sustained high speeds, had 390 hp. Gallon of Gas : $0.32. The 2+2 was equipped with a 421 cu in (6.9 L) engine, dual exhaust, heavy duty front springs as well as its own outer body trim appointments. Whether you have decided to stay with the stock type stamped rocker arms or Competition Cams Magnum Rollers Rockers as pictured here, or something far more exotic, you will need to adjust valve lash. 383 cu in V8. Great condition. So if you want to cut and paste the Pontiac V8 Firing order it is 1-8-4-3-6-5-7-2 with a counterclockwise distributor rotation Even in a car this big, 421 is a tight fit. 1968 Pontiac GTO 428 / Royal Bobcat. 1962 Pontiac Catalina Additional Info: I have decided to sell our 1962 Pontiac SD 421 Catalina, VIN #362P43734. Had hoped to finish the project in my lifetime and enjoy, but it simply hasn't come together over the course of many years. 3) (Base, Brougham) Horsepower/Torque Curve These featured up to 13.0:1 compression and came with a single four-barrel, three two-barrel or dual four-barrel carburetors. ... the factory 421 H.O. The engine remains popular with performance car enthusiasts, but in 1969 the factory only installed them in larger cars. Windage Tray: Engine Oil The engine is freshly rebuilt, and we had a little discussion regarding timing. GuruFV33F asked a 1966 Pontiac Grand Prix General question about a year ago 1966 Pontiac 421 Engine And Transmission Trying to figure out if I need to rebuild it. 1 product rating. The 1964-1967 Pontiac Catalina 2+2 was highly touted for its powerful acceleration and smooth handling. That first four-cylinder ’61 Tempest, using a Smokey-designed “pillow” block to control the rope drive-shaft’s vibrations, won its class at Daytona in 1961 (Yes, if you were paying attention, that engine was half of a 421! Jan 16, 2014 - Auction Lot F199, Kissimmee, FL 2014. Disappointing sales figures plagued the 1965-1968 Pontiac Grand Prix. PRICE AS TESTED $5,099.00. 421: 370: 4-speed: 3×2: 544988: 4: 3.90 gear HO: 11F: B-body: 62: 389: 348: 4-speed: 425A: 3×2: 538181: 4: 3.90 gear: 11F: B-body: 63: 421: 370: 4-speed: 3×2: 544988: 4: 3.90 gear HO: 11H: B-body: 64: 389: 267: Powerglide: 1×2: 9773155: 2: 12 5: B-body: 63: 421: 405: Powerglide: 1×4: 544988: 4: Super Duty: 125T: B-body: 63: 421: 390: 4-speed: 1×4: 544988: 4: 3.42 gear Super Duty: 12B: B … Pontiac engines were available in many different displacements, ranging from 265 CID to 455 CID. 89,935 miles. done in 2002 a sat in showroom on display till i buy it 4 years ago now it in my garage and now need the room. Every torque specification should be in this table, however if there is one missing, please Contact Me and I will get you the spec and add it to the table. Manifold and carburetors look great. Stock Connecting Rod Bolts: Assembly Lube: 45 ft-lbs. Ready to see this car done and admired instead of in pieces! their specs. Pontiac tripower specifications . They were intended strictly for racing and to make Pontiac the competition king. Numbers on the crank are often the same as the part number, but not always. In 1966 Pontiac built 42,004 two door Bonneville's 2622 --- 421 Engines with tri-power were built in 1966 547 WH Engines 356 HP 4 speed Manual 984 YJ Engines 356 HP auto trans 9 YM Engines 376 HP auto trans 562 WJ Engines 376 HP 4 Speed manual 520 Yk Engines 376 HP auto trans I have a 1966 Bonneville 2 door. Over the years, displacement increased several times, but external dimensions remained about the same. It is the teal car shown in the pictures. Blue. Pre-1964 cranks must be machined to fit Turbo Hydramatic torque converters. Rocker Arm Nuts (Non-Adjustable Rockers) Assembly Lube: 20 ft-lbs. This was the only Poncho with standard 421-cid power. 389 block with 2-bolt 3.00" diameter mains to accept the factory 3.750" stroke crankshaft. This chart covers Pontiac V8 Engines; 265, 301, 326, 350, 389, 400, 421, 428, 455 cu in. Auction. It is actually pretty straight and not too rusty. This 1966 Pontiac 2+2 is a proper cool-cruising hardtop with everything you want, including an A/C interior, 8-lug wheels, and a big 421 V8 with tri-power on top. 1966 Engine Codes ; Code: Application: Displacement: Compression: Horsepower: Transmission: Heads: Camshaft: Carb: WA : 389: 8.6:1: 256: Manual: 91: 254: 2 bbl: WB : 389: 8.6:1: 256: Manual: 91: 254: 2 bbl: WC : 389: 10.5:1: 290: Manual: 92: 66: 2 bbl: WE : 389: 10.5:1: 333: Manual: 92: 67: 4 bbl: WG : 421: 10.5:1: 338: Manual: 92: 67: 4 bbl: WH : 421: 10.75:1: 356: Manual: 93: 67: Tri-Power: WJ : 421… Tri-Power engine build being performed by Jim Taylor. The 389 was the standard engine for the Pontiac GTO from 1964 to 1966. I do have a 1965 Pontiac 421 core engine (complete) that I might be willing to sell separately. Electric options. Super Duty 421s were back, tougher than ever. Console. This is a work in progress and not guaranteed to be correct. frame off restored by a local workman's pontiac dealer here in rupert id. Ft-Lbs. Cylinder Heads. VEHICLE TYPE Front-engine, rear-wheel-drive, 4/5-passenger sports sedan. Pontiac parts used on complete engine rebuild. There were a lot of changes to the 389 during its eight year production run which gained the engine … It's a loaded 58,000 mile original mile car featuring the top engine option: the 421 HO 376 Tri-power, YK block, with … This lug signaled the line workers to transfer the 421 blocks to a different machining center, the 326 blocks had one as well. CC-1474728. ... Others have had the casting number removed by individuals either wishing to “dress up” the engine, or in an attempt to deceive. Despite Motor Trend "Car of the Year" honors to Pontiac -- and record division sales -- the '65 Grand Prix garnered some 6,000 fewer orders than the '64.. If you are using ARP … Whether your vehicle is a GTO, Fire Bird, Trans Am, Lemans, or a timeless classic, here at Pro-formance Unlimited we are here to help design and build the engine combination that will match you with your vehicle. Components are interchangeable from each displacement, other than 265 & 301, which are only compatible with themselves. 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. What was most interesting about the 421 engine in the beginning was that it was a dealer installed option only known as the SD (Super Duty) 421. The other major difference between the “typical” Pontiac engine of the time was that this one used the large journal block with the 3.25″ mains and four bolt main caps. Two 421 H.O. 1964 – 1967 casting numbers are found on the distributor pad, except the 421’s. 3) specs 1966 Pontiac Bonneville Convertible 389 V-8 2-bbl regular Hydra-Matic (aut. 3) (Base, Brougham) specs Pontiac Bonneville Convertible 389 V-8 2-bbl regular Hydra-Matic (aut. If you're planning to rebuild an engine you've already got, or you're considering a Pontiac V-8 purchase in the near future, there are some important engine block, crankshaft, and connecting rod information you should be aware of. gasoline (petrol) engine with displacement: 6902 cm3 / 421.2 cui, advertised power: 252 kW / 338 hp / 343 PS ( SAE gross ), torque: 622 Nm / 459 lb-ft, more data: 1966 Pontiac Bonneville Convertible 421 V-8 4-bbl Hydra-Matic (aut. From a performance perspective, the 2+2 is pretty impressive. This is a very nice authentic 1966 Pontiac GTO 2 Dr hardtop that is powered by Pontiacs famous '67 400 cubic inch engine and a '66 Pontiac Tri-Power carburetor set up. In 1933 and 1934, Pontiac built only eight-cylinder cars, but they used a straight-eight rather than a V-8. Feel free to contribute. 468 cubic inch pontiac 4 bolt main caps. A friend of mine have a -66 GTO 3*2bbl carb setup. PHS documents Cosmetic restoration. While the 4-speed was offered across all engines in the 1966 Grand Prix range, it was not a popular option. Sometimes you could get a dealer to install one in a Firebird, and the engine was at times used in NASCAR racing. By Rocky Rotella. Real 421/4-Speed: 1966 Pontiac Grand Prix. Pre-1964 cranks must be machined to fit Turbo Hydramatic torque converters. 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. Race engine has been installed. Adam Clarke. (V8) - Stamped on right front side of block or beneath production engine number on machined pad on right hand bank of engine block. A 428 engine shares the 4.120-inch bore of a 400. It was the same 251-cid 85-hp flat-head V-8 used in Pontiac’s almost-dead parent make, Oakland, during 1930 and 1931. List of Pontiac performance specs Welcome to the most complete Pontiac 0-60 & quarter mile times resource online offering a comprehensive index of Pontiac 0 to 60 car specs, including Pontiac Trans Am WS6, Pontiac Grand Am, Pontiac Fiero, Pontiac Sunfire, Pontiac G8, Pontiac … These included a 389 four barrel and a 389 Tri-Power engine. The 421 Tri-Power could now be ordered in two forms. 20 Pontiac from $4,197. There is also a 1966 Grand Prix parts car that can go with this if you want it. Save up to 12% when you buy more. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs.
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