340 Pistons with 10.5 CR with X Heads???

SheSaid said

In the process of setting new valves then going to cc them. At that point I will have to decide if I need to mill.

Forum on them here.

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If they were to cc 68 the 2316s would give you 10.2:1 I have the 2316s, stock lightened rods w ARP bolts, and a stock .010/.010 forged crank in one of my 340s with OOTB closed chambered edelbrock heads and it dynoed 428 HP @ 5800 w a solid flat tappit cam. Not to shabby for a 340 ci May have port work and install a roller cam later on to see if I can get 450 + out of her.