Originally Posted by gregsdart
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, 🧐


Probably more work to do it that way than it's worth? Fairly easy to just skim .005 off the top. Can I get away with less, while using an aluminum block? Probably, but since this is a bracket engine, and I really don't have the funds to be buying new pistons, once something does go wrong. I'll just adjust the old shoe polish on the window instead.

69 GTX 68 Road Runner