would it hurt anything to run a stock head on 1100stx with 82mm bore wisecos (fresh rebuild) until i got the cash to send it off to groupk?

does anyone know the service limit on the bores of a 1100zxi and a 900zxi? max piston to cylinder clearance before having to rebore. using wisco pistons in the 1100 and wsm are in the 900 if it matters.