Now it's time to get serious. Sure, the first two versions made great power, but you haven't seen anything yet. The short-block is plenty strong to support power levels higher than 600 hp, but it's generally accepted that the top ring-end gap needs to be increased from 0.024 inch to 0.028 inch. Otherwise, the higher heat from more power will cause the ends to butt, which will damage the cylinder walls. While we had the rods and pistons out, we threw in a new set of Clevite 77 rod and main bearings and Hi-Tech one-piece cam bearings from Number 1 Performance.