Cometic Ford 239/255 Flathead V8 3.375in Bore 24 Bolt .036 in MLS Head Gasket - Right 2020-ford-expedition-max-king-ranch-esi9219078 GM015S uses exclusive diaphragm design

GM015S uses exclusive diaphragm design to increase clamp load

It also includes light fitment options for a 30" dual row LED and two cube lights

Unique screw and lock device provides a positive connection that avoids vibration and water incursion

stylish look—all while providing maximum protection and stability

Cometic Ford 239/255 Flathead V8 3.375in Bore 24 Bolt .036 in MLS Head Gasket - Right 2020-ford-expedition-max-king-ranch-esi9219078 GM015S uses exclusive diaphragm designThe HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block. The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements Requires less clamp load