1966 Barracuda

one more note: the 302's are "closed" chamber heads (not fully round where the combustion chamber is) as well as the original 273 heads and the 273-4 pistons are +.0129 proud of the deck on a blueprinted motor. Never gonna happen but check your 4bbl piston to head clearance with your head gasket of choice. Most all the head gaskets sold today are at least .020 compressed thickness, some are up to .044 so this should not be an issue on a stock block. Decked blocks beware!