418HP 5.9 Magnum

408 swinger said
Very nice numbers! If I may ask, what piston, head gasket, and chamber size? Trying to get one of these to exactly 9 to 1. Wonder what the professionals do. Thanks for your time!

KB 362 piston, 19.4cc, out of the hole .005, Victor head gasket .045, cut head down to 61cc for 9.4:1.