v-rod kit wiseco punches it out to 4.250 bore the same size as a 454 chevy and ... a piston that has grown from 3.937 to 4.250 in diameter to gain a lot of weight ... pins gasket kit o-ring kit and sleeves 234137234138234143234144 80ci big bore kit ... pin and piston pin clips piston kits 238805 3 3/4 piston kit for stock stroke ... 238846 3 3/4 piston kit for 4 5/8 stroke ... piston ring set for one piston 238813 std size replacement cylinder head and ... base gasket kit 238852 for two cylinders note these kits are ... construction of the stock 1990 thru 1995 crankcases the use of these is not ... measured from deck height dome volume -2 cc intake pocket depth diameter 189 2 ... exhaust pocket depth diameter 189 2.000 07-139 07 piston dome specification ...