Pontiac 400 Specifications

The 400 is a bored out 389 which had been in use for a few years.

Pontiac 400 specifications. The 400 pushed this number up to 360 horsepower with the same quadrajet single four barrel. If you are using arp bolts you must use their specs. Pontiac began as a companion to the oakland division of the general motors line of automobiles in 1926. Pontiac introduced the 400 cubic inch v 8 in performance oriented cars in 1967 and continued to make the engine available through 1979.

What sets this engine apart in the history books is the factory installed high performance ram air systems. 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. Pontiac engine torque specs bolts or parts lube or sealer torque to. The pontiac firebird 400 is a rear wheel drive automobile with the engine placed in the front and a 2 door coupe bodyshell.

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. Main caps engine oil 95 ft lbs. This version of the pontiac v8 engine was used in the gto firebird and the trans am firebird. Connecting rod bolts assembly lube 45.

The firebird 400 is a car from pontiac with rear wheel drive a front mounted engine and a 2 door coupe body style. The pontiac 400 66 liter engine was first introduced in 1967. Its 8 cylinder overhead valve naturally aspirated engine has 2 valves per cylinder and a displacement of 66 litres. 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.