Originally Posted by JERICOGTX
Originally Posted by Al_Alguire
.040" piston to head with an aluminum block is plenty conservative......


Right now I'm around .035-.036. The piston has plenty of rock in it. The highest point I saw was .028 above the deck.

Since piston contact happens due to piston rock, (those with more experience chime in if I am missing something) the idea of shaving . 005 off at an angle on the closed side of the chamber might be a way to save a current combo? The angle could be measured with the piston cold in the block, and the actual cut may only extend three quarters of an inch in. JUST THINKEN, 🧐

8..603 156 mph best, 2905 lbs 549, indy 572-13, alky