WebMay 20, 2010 · 396 Posts. #3 · May 16, 2010. def 383 stroker, 400 poncho's can get expensive fast, sbc on the other hand, they are getting cheaper to build, plus on the other "GOOD" hand the 383 can put out more for less cash, i currently started to build my first 550-600hp 383, do some research on the 383 and you will be ready to go!! thats my … WebNov 1, 2008 · See all 19 photos Joe Sherman Racing Engine's cast crank features the 4.210-inch stroke of a 455 and the 3.00-inch mains to fit the 400 block. Installing a 455 spec crank in a 3.00-inch main...
list your 400 or 406 sbc combo
WebJan 1, 2024 · Building a Pontiac 400 engine to its absolute peak performance level of 400 horsepower is a task that requires skill, knowledge, and patience. It is not something that can be achieved overnight, and it is certainly not something that can be done without the right parts and expertise. WebMar 30, 2006 · A 327 will be cheaper and easier to build than a 302. You could get a large journal 327 crank (used in the last 327's made in 1967 or 1968) and use your 350 block or find a 4 bolt 350 block. A 302 uses a 3" stroke crank (283-small journal or L99/after market-large journal) and 4" bore (327 and 350 blocks are 4" bores. bruce morgan tahe
Maximizing Your 400 Horsepower: Building A Pontiac 400 Engine
WebSep 11, 2003 · Its 4 speed with a 12 bolt chevy rear. 4.88 gears and an aluminum 12lb flywheel, 9in slicks. The motor is a 67 428 40 0ver balanced with stock rods ( beams … WebMar 10, 2011 · Joined Jun 19, 2010. 4,236 Posts. #5 · Mar 9, 2011. Stock rods. Stock Pontiac rods should never be used unless they are reconditioned with ARP rod bolts. However, stock Pontiac rods thatare reconditioed with ARP bolts will be fine in a daily driver with "occasional" bursts of speed up to 5500 RPM. WebNov 26, 2010 · Stick with the 400. Yes, you can use a 421 crank (4.00" stroke) in a 400 and make a 440 or a 455 crank (4.210" stroke) and make a 462, but the 400 is hard to beat and is a very stout performer. A 440 or a 455 will make more torque, but requires clearancing the oil pan rails with a die grinder and custom pistons. bruce mork