naw 58cc combustion chambers are way to small and my compression will soar with stock pistons. i dont wanna take the compression over 10:1 cr. 308 then, huh? ok thnx
umm..no....not quite. I have
56cc J-heads on my 318, stock replacement/flat .030 pistons, not decked, and just a replacement head gasket and 9.7:1 cr...decently far from 'soaring' or going over 10:1
I have 915 open J's. Milled.
and those 58cc W2 heads are a weeeeeeee bit more expensive than your average 360 head. Especially to put on a 318.