Quote: None this answer my questions. Its going off in a totally different direction. My 383 is all ready, that's the block I'm building. I'm either going to put it back stock stroke or 440 stroke. Who out there has a 431-438?
I did a 383 with a 3.910" crank for a 451. Never made it to an engine dyno or the track but got 476 hp and 500 tq on a chassis dyno. Questionable ring seal, small headers and intake probably cost me 20-30 hp.
