Block has been hot tanked and cylinders honed. Standard bore. Crank turned and polished: Rods -.010, Mains -.010, Thrust std. Double camelback fuelie heads casting #3782461 1.94" Intake and 1.50" Exhaust. Heads hot tanked and valve seats competition ground and matched to new intake and exhaust valves. Engine is not assembled but includes all parts except oil pan, intake manifold and carb.