Yep, it only has to clear. But it has to clear all the time, under all conditions. But it only has to clear by .0001 I had a small block Ford yeeeeears ago, that would never let carbon built under the quench pad. Never hit. Just never developed carbon either. May have after some long term street driving. But the first time it went to red line, it was gone. I hve no idea how close it was coming. But it wasn't clearing by much.
You really shouldn't blame TRW/SP for the interference on the pistons. You have to remember, they are built to be .020+ IN THE HOLE.
The problem with Obama jokes is that his worshippers don't think they are funny, and the rest of us don't think they are jokes
Cut the deck of the block till the piston is .025 out of the hole. Now cut the flat of the piston area to where it is 0 deck. Now stick cylinder head on and cut piston dome to where it clears any part of the cylinder head. Check P/V clearance and maybe cut the valve pockets to where you have .125 on exhaust side and .100 on intake.
Now use .040 gasket.
Done that many times and never touched anything at 8000.
Anyone else that crazy?
Oh yeah....steel rod only. LOL
Last edited by Fiat48; 08-05-2010 at 09:24 PM.