74 XB Fairmont
Join Date: Sep 2001
Location: Cranbourne, Vic
Re: 302C w/351 crank - Possible? & What comp?
With the special pistons required deck height should be zero. Gas does detonate. My had a 351 running 302 rods with the chambers opened up pinging it's guts out. Compression was 11:1 from memory. Gas has dropped octane wise. It's around 100 now where it used to be 110.
Comp @ 11:1-11.5:1.
Special pistions required.
Cam's you can use any.
Clearance issues only become an issue when your getting close to 700thou lift.
Cam choice does affect combustion chamber pressures. Bigger cam = less pressure = no detonation.
350-400hp you won't have an issue achieving with the right cam. I'd suggest a Crane F238 or F246 solid but can be done with others.
Best bet is to try and stick around 10:1-10.5:1.
The engine your looking at building is a tried and tested combo built by many engine builders.
XB Fairmont (street car) email@example.com.
Last edited by brenx; 02-17-04 at 04:18 PM.