Almost time for the machinist!

dartfreak75 said

That makes sence but what if I get .030 over pistons (what I want) and it takes .040 to get the walls corrected? Then I gotta buy more pistons lol.

Building a 360 using speed pro h116cp pistons I'm gonna start a engine build thread soon I was kinda waiting till I get closer to final assembly. .030 is my goal because of the piston weight.

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Once block is cleaned, you (actually your machinist ) should be able to tell real fast what the block will clean up at and therefore what size pistons to order up. Generally speaking .030 over will clean up just about any cylinder; I'll admit not always, rust pitting can be the death knell, myself almost got hit with that when I built my 360 years ago, had .030 over in hand and was worried it might take .040, he made a pass with his boring bar at less than .030 and we got a nice clean wall. Don't get too worried about piston weight, they are gonna weigh what they weigh, if anything look for lighter...........you have a balance job coming at you anyway so don't let that keep you up at night.