Pontiac 400 Engine Internal Diagram

This is the same year that Pontiac used the HO (High Output) to distinguish their engine from the Oldsmobile Rocket version and the Buick Wildcat engines.

Pontiac 400 engine internal diagram. PRW 326-455 Neutral (Internal) Balanced Pontiac Gold Series SFI Approved, 166 Teeth Flexplate- 2.75" center PRW-1845501 (0) Reviews: 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.. The engine evolved from the Pontiac 370 in which the stroke was increased. Fast forwarding to 1967 Pontiac altered the bore and stroke to produce the 400.

No cracks, they have one repair at the collector and the valve is frozen. Firebird, Formula and Trans Am models all use the same diagram. #9779494 & #9779495 they fit the 1967-69 Firebird 400 Ram Air & HO as well as the 1965-68 Full Size Pontiac with the 421 & 428 HO engines. Pontiac typically changed engine sizes by modifying the internal workings instead of the outward size, so many of.

Write first review Description: Pontiac introduced the 400 cubic inch V-8 in performance oriented cars in 1967, and continued to make the engine available through 1979. Find PONTIAC 6.6L/400 Harmonic Balancers and get Free Shipping on Orders Over $99 at Summit Racing!. If the engine hasn't, you might find the original plug very tough to break free, possibly rounding out during the attempt.

Pontiac cranks are generally categorized and referred to by main journal sizing. The 400 is a bored out 389, which had been in use for a few years. These are a D-port manifold. However, stroking the engine to say 461ci and retaining the 6X heads, the torque will increase to tire-frying proportions, and the W72 block will hold up better than the regular late '75-'78 400.

There were a lot of changes to the 389 during its eight year production run which gained the engine even more notoriety. Torque - PUMP GAS AND HYD. *The 1963 "326" engine had an actual displacement of 336 ci due to its 3.78" bore. The 400 CID Chevy small block engine was produced from 1970 until 1980 and was the largest displacement engine made in that platform.

By Larry Gorden December 2007. I figure you would rather have aluminum heads for the full race engine, but if not then set up the heads on the 350 for how it will be used on the 400+ engine. The oil must be filtered, of the … [] HeadReturn to Parts interchangeability [] 6X headCasting 6X heads and similar heads from the "smog era" generally all have hardened exhaust seats, screw-in rocker studs and guide plates, with 2.11" intake x 1.

Kit 250 Engine Kit 262 Engine Kit 283 Engine Kit 305 Engine Kit 307 Engine Kit 327 Engine Kit 383 Engine Kit 383 Stroker Kit 400 Engine Kit 427. Bolt, main bearing cap to block 70 lb-ft 100 lb-ft oil 20 lb-ft Bolt, rear main cap to block 100 120 oil 20 Bolt, cylinder head 85 95 * oil 20 Bolt, flywheel to crankshaft 95 95 dry 40 Bolt, oil pan to block 12 12 Butler Performance 535 cu.in. If I were building a stock block engine to race, it would get the 4.5" crank, small chamber big valve heads (aluminum or iron), the cam would depend on the heads I used, and either a.

The 400-455 is pump gas friendly for the mild daily driver. Early Pontiac V-8 Engine Cooling. Get Special Offers, New Product Announcements and more!. The oil within any engine is its lifeblood.

Its pumps were sourced from the AC division of General. The crank pin, or connecting rod journal, as it’s often called, remained at 2.25 inches throughout the entire production run. Pontiac's Pumps Pontiac strategically placed its V-8's fuel pump on the driver side of the timing cover, where it's cooled by the engine fan. Engine w/ IAII Block and our CNC Race Ported Edelbrock Heads ( std.

The “00” found on this block indicates that it’s a 400. The 3-inch unit was used in all V-8s up to 400 inches produced between 1959 and 1979. DCI 400-455 is DCI’s most popular crate engine. BUTLER PERFORMANCE introduces the ULTIMATE PONTIAC STREET ENGINE !!

The Pontiac V8 engine is a family of overhead valve V8 engines manufactured by the Pontiac Division of General Motors Corporation that made its debut in 1955. Other examples include “50” or “55,” which indicate a 350 or 455, respectively. ** The 303 and 366 were not productions engines. In 1960, Pontiac abandoned the reverse flow system in favor of “conventional” flow where cooling.

Join the Internal Engine Parts Center Mailing List. Aluminum, Natural, Internal Engine Balance, 5.500 in. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. The general design was the same as earlier small.

O.D., Pontiac, Each Part Number: ***The 350 engine actually displaced 354 ci. The only option on these cars was the engine (the 400 was not certified for.