Quote:

I have one low deck 400 block with 4.300 stroke Chinese crank, pump gas motor that is in the car now tat has 6.8 long CAT H beam Chevy rods in it.



Cab, more info on this combination
Looks like you would need a 1.030" compression height piston?, and compression might be in the mid to high 11's with flat top piston (with valve reliefs) and a 84cc head?