Help on 408 build

The CR calculator is still up and loaded from this AM LOL

I am getting 9.7:1 for:

• 4.00" stroke
• 4.03" bore
• 64 cc head chambers
• .049 thick head gasket with a 4.18" bore hole (That's the spec for the 8553PT Felpro kit head gasket
• 21 cc dish volume (I add a bit for the crevice space down to the top ring)
• .000" deck clearance

DCR with that piston and your present cam is 7.9:1 installed at an ICL of 108 degrees.

NO worries whatsoever over 1 gram.. that is down 'in the noise' for a street engine. 10 grams... I can go either way; no 'flaming' from me on that matter. It's generally agreed that stock SBM's, including 340's, had a factory tolerance of +/- 20 to 30 grams for all the balance work. It is fortunate to have a substitute piston to be THAT close!

And no worries over re-examining this... it is a lot to absorb and weigh back and forth.