I found a really good deal on a rebuilt Chevy 400 short block. Apparently Uncle Sam is slamming this guy on his taxes and he has to liquidate some stuff. It's a 400 2 bolt motor, bored .030 over, not sure of the exact cam specs yet, but the crank has been cut .010, reconditioned rods, all new main and rod bearings, and new flat-top pistons and rings.

I know that flat top pistons and 64CC heads would put me at about 10:2:1 compression on a 350. I'm not sure what that would be on a 400. What would flat-top pistons and 76CC heads put me at on this motor??

All I am looking to possibly do with this is build a very mild street motor. I am thinking that if the cam is too radical I would replace it with a Comp XE 262 or one of Crane's mild grinds.

I'm not looking for major horsepower here, I just want a little umpff.

By the way, this guy wants $300.00 for the whole thing. I can't pass that deal up.

With 64cc heads, 6cc pistons, and a .039 x 4.19 gasket the CR is about 10.8-10.9. With that high of compression you'll need a fairly healthy cam with a minimum of about 290º adv duration (110 LSA, ICL 106) to run pump gas. With the 76cc heads, CR is 9.65 which will work with a smaller cam. The smallest being around 260º adv. The 262 would work great.