Web2016-02-01 Pontiac engines were cheap to build for decent horsepower when you could get engine blocks and heads at swap meets and salvage yards. Those parts are now scarce as Dodo birds. I built a 1969 Firebird 400 in 1971 -1972 and it consistently turned in the mid 12 second bracket with 8.50x 14/12" GoodYear wrinkle-wall slicks. WebNov 12, 2024 · A 455 crank with the main journals ground down .25 inches to 400 main size, boring the block .030″ over, and some 455 pistons will get you up to 455 cubic inches. A …
Best way to get over 400hp out of a Pontiac 400 Hot Rod Forum
WebApr 19, 2016 · Mike’s 2009 G8 is mild bolt-on car and has Kooks long-tube headers; a Solo, Mach Shorty cat-back exhaust system; a Vararam cold-air intake; and a Pat G tune. The result is an impressive 370 horsepower at … WebJan 1, 2024 · The Pontiac 400 engine was a fierce competitor in the 1970s. The most powerful version, the Ram Air IV, produced an impressive 370 horsepower, making it one … openstack resize
How We Got Over 500hp from Ford
WebJul 23, 2024 · Hey, I am restoring a 1970 Pontiac lemans and I have a fully restored 400 block bored .30 over, new sealed power bearings, edelbrock performer intake, ram air iv cam made by edelbrock and lifter kit, Holley 750dp, carter fuel pump, hooker super comp headers and melling high pressure oil pump... WebApr 1, 2007 · If you stay with 400 ci, increasing compression has been a popular choice, but it's not totally necessary. With today's modern fast-ramp cams, such as the Comp Cams Extreme Energy Series (XE262H ... WebMay 6, 2024 · The result is a pump-gas-friendly 9.9:1 (nominal) compression ratio when paired with an 87-cc combustion chamber. And, if you’re looking for a bit more squeeze, … openstack release list