BruceH
BBB Big Bore Boss 322
Same thing that confused me, if its a FRPP block I believe cometics is your only choice for gasket.
Bruce, can a aluminum block be sleeved to 3.7 bore ?
OP, I think you have a 3.75 stroke with stock bore. This equates to a 5 liter motor. Other option is a 3.7 bore and stock stroke, yields a 5 liter.
It can be done. I don't think there is a good track record with doing it though. Hopefully the op has a standard bore.