Which is the most powerful version of the Pontiac 400?
Which is the most powerful version of the Pontiac 400?
That made the 400 the top engine in Firebird and GTO for many years as it received a wide range of high-performance cylinder heads and camshafts through various iterations of the Ram Air package. The most powerful version of Pontiac’s 400 to ever reach production was the Ram Air IV.
What was the bore of a Pontiac 400?
In 1967, Pontiac took the basic recipe of the 389 and added a bit to its bore, creating the 400. With a 4.12-inch bore and a 3.75-inch stroke, Pontiac’s 400 had similar bore and stroke to Chevy’s big-block 396 (even when the Chevy actually displaced 402 cubic inches).
How big is the engine in a Pontiac?
As the large-main-journal Pontiac engines found in Pontiac’s full-size cars evolved from 421 to 428 and, finally, 455 cubic inches, Pontiac still went with the well-rounded 400 as its go-to muscle car mill.
What are the 0 to 60 times on a Pontiac?
Please take into account that the Pontiac 0 to 60 times and Quarter mile data listed on this car performance page is gathered from numerous credible sources. There are a great deal of factors that affect the Pontiac cars 0-60 stats, so different sources may test the same vehicle and each may arrive at a unique 0-60 mph and quarter mile result. Zero
Can a Pontiac 400 engine make 400 hp?
Q: I want to build a Pontiac 400 engine for my 1968 Firebird. What parts would I need to build a sweet-running engine that makes around 400 horsepower? (Money is no issue!) A: We think the Edelbrock Performer RPM package would be ideal for you.
What kind of engine does a Pontiac GTO have?
The four-barrel 325-hp version was standard in Grand Prixs and optional in full-size Pontiacs. The base GTO engine was a 389 with 335 hp and a 360-hp Tri-Power version was optional.
When did the Pontiac 400 V-8 come out?
Throughout the ‘60s, Pontiac’s 389-cubic-inch V-8 did most of the heavy lifting in the brand’s performance models with the 421 and its larger crankshaft main bearings handling the Super Duty work both in NASCAR and on the dragstrip. In 1967, Pontiac took the basic recipe of the 389 and added a bit to its bore, creating the 400.
What’s the casting number on a Pontiac 400 engine?
The svelte 400 block is easiest identified by its 500557 casting number, and lacks the durability required for high-performance applications. When searching for a stock block, purchasing a complete and running engine is fine so long as you’re aware that you have no way of predetermining the block’s condition and capability.
