Pontiac 400 Engine Internal Diagram

It was intended as a low performance, high-torque engine primarily used in Chevy's heavier passenger cars and light-duty trucks.

Pontiac 400 engine internal diagram. The only option on these cars was the engine (the 400 was not certified for. These are a D-port manifold. 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 The engine evolved from the Pontiac 370 in which the stroke was increased.

Join the Internal Engine Parts Center Mailing List. In 1960, Pontiac abandoned the reverse flow system in favor of “conventional” flow where cooling. The “00” found on this block indicates that it’s a 400. [] 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.

Its pumps were sourced from the AC division of General. 700+ HP and 700 ft.lbs. If the engine hasn't, you might find the original plug very tough to break free, possibly rounding out during the attempt. The 400-455 is pump gas friendly for the mild daily driver.

#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. Engine w/ IAII Block and our CNC Race Ported Edelbrock Heads ( std. BUTLER PERFORMANCE introduces the ULTIMATE PONTIAC STREET ENGINE !! 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..

Pontiac placed displacement callouts on each side of the block in 1968, and cast the last two digits of the displacement size into the center of the lifter valley. O.D., Pontiac, Each Part Number: Write first review Description: ** The 303 and 366 were not productions engines.

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. 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. Get Special Offers, New Product Announcements and more!. No cracks, they have one repair at the collector and the valve is frozen.

Find PONTIAC 6.6L/400 Harmonic Balancers and get Free Shipping on Orders Over $99 at Summit Racing!. Other examples include “50” or “55,” which indicate a 350 or 455, respectively. The 400 is a bored out 389, which had been in use for a few years. PRW 326-455 Neutral (Internal) Balanced Pontiac Gold Series SFI Approved, 166 Teeth Flexplate- 2.75" center PRW-1845501 (0) Reviews:

Firebird, Formula and Trans Am models all use the same diagram. Pontiac cranks are generally categorized and referred to by main journal sizing. Fast forwarding to 1967 Pontiac altered the bore and stroke to produce the 400. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use.

Torque - PUMP GAS AND HYD. By Larry Gorden December 2007. There were a lot of changes to the 389 during its eight year production run which gained the engine even more notoriety. 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.

The 3-inch unit was used in all V-8s up to 400 inches produced between 1959 and 1979. Butler Performance 535 cu.in. Aluminum, Natural, Internal Engine Balance, 5.500 in. Pontiac typically changed engine sizes by modifying the internal workings instead of the outward size, so many of.

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. 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 crank pin, or connecting rod journal, as it’s often called, remained at 2.25 inches throughout the entire production run. The general design was the same as earlier small.

***The 350 engine actually displaced 354 ci. The oil within any engine is its lifeblood. DCI 400-455 is DCI’s most popular crate engine. 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.

The oil must be filtered, of the … 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. Early Pontiac V-8 Engine Cooling.