Hello! I could really use some help on my street 340 build.
Its a 72 340 block bored 040 over with rebuilt 68 X heads which CC'd at 67.2cc. New valves with hardened seats.
Block is at the machine shop getting new cam bearings and will need to be honed. The TRW 2316 Pistons looked pretty good except for #8 which had about a 1" scuff mark on the skirt below the oil ring. Oddly enough the cylinder did not look like it had seized.
The shop mic'd the pistons and I have about .003 of clearance before honing. He told me the #8 piston has slightly more clearance and I could reuse the pistons but I may get some piston noise. He's leaning towards new pistons but its on me to decide. He's recommending basically the same piston (speed pro) as a replacement.
Reading about forged piston clearances it seems like I should have good PTW clearance sticking with the pistons I've got.
Any help would be greatly appreciated!
