4.00 standard bore expanded graphite gasket for high performance applications. Part of M-6051-A50 5.0L gasket kit described below. Requires torque-to-yield cylinder head bolts (available from Ford and Lincoln-Mercury dealers).
Several different water hole patterns have been used on 302 and 351W Ford Racing cylinder blocks and heads since their introduction. Engine assemblers should lay the headgasket on the block and the cylinder head (with front of gasket toward the front of the engine) to make sure there is a path for coolant flow from the block into the head. In some cases, holes may have to be drilled in the block or head or punched in the gasket.