Pontiac 400 Engine Diagram

Pontiac successfully competed against more expensive inline four cylinder models with their inline flathead six cylinder engines.

Pontiac 400 engine diagram. While modern 10w 30 oil can provide sufficient lubrication heavier oil is often the choice of many professional pontiac engine builders. This version of the pontiac v8 engine was used in the gto firebird and the trans am firebird. In 1977 the 403 oldsmobile engine appeared wheezing its 185 hp. The pontiac 400 6 6 liter engine was first introduced in 1967.

The emissions diagram illustrates the correct routing of all vacuum lines for the 1979 400 pontiac engine. 1965 66 pontiac full size 1967 pontiac full size 1968 pontiac full size 1966 69 pontiac full size 1973 81 pontiac full size. Coupled with a 2 56 1 rear axle ratio and weighing more than 3 800 pounds it wasn t much of a stoplight. 265 301 307 326 350 389 400 421 428 455.

When multi viscosity oils became available pontiac revised its recommendation to include 10w 30 oil for year round use. 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. Although technically a big block engine the 185 hp was about the same as a base engine in a corvette. Pontiac originally specified 20 or 30 weight oil for its v 8s depending upon the season.

The 400 455 is pump gas friendly for the mild daily driver. The 400 is a bored out 389 which had been in use for a few years. The 400 was inspired by the pontiac 389 v8 and proved to be the last pontiac engine with closed chambered heads. Based on production block and heads this combination provides plenty of power with quality bottom end components to allow for endless upgrades.

1978 pontiac service manual and 1979 supplement. Pontiac began as a companion to the oakland division of the general motors line of automobiles in 1926. Or firing engine order for a pontiac pontiac v8 at this site you can find the firing orders for chevrolet engines. It is provided to help enthusiasts restore their engines so it complies with state and federal emissions testing requirements.

Pontiac firing order pontiac v8. Pontiac typically changed engine sizes by modifying the internal workings instead of the outward size so many of. Pontiac introduced the 400 cubic inch v 8 in performance oriented cars in 1967 and continued to make the engine available through 1979. Get free pontiac built v8 engine firing order.

The early years saw only pontiac engines in the 400 and 455 ci sizes. Firebird firing order diagram. At the start of the 1970s the 400 v8 generated more than 300 horsepower. Featuring a pontiac 400 cubic inch block stroked to 455 cubic inches this authentic pontiac stroker is perfect for street and strip use.

I need the diagram for a distributor cap and plugs.