Quote: I've been on this myself. definitely want cast pistons & I had checked out some 403 olds pistons. 4.351" bore/1.585 CH. they're on eGay for cheap. I'd prefer a B block & I'd have to fab an external oiling system. I haven't found the right combo yet
A couple of Q's here on the pistons .....
The 403 Olds ? ... did you use them bone-stock? .. no mods to the piston deck or pins ?
The KB's that were mentioned ... these are forged ? ...
Now on the top ring location vs top of piston ? .... what is the minimum spec? (no spray or boost)
