(2) 67-81 JEEP AMC 290, 304 STEEL SHIM HEAD GASKETS .020" - HP High Compression

Steel shim head gaskets have .020" compressed thickness for higher compression compared to .038" composite gaskets.

*Roughly 1/2 point higher compression ratio compared to .038" composite head gaskets.

*Embossed to seal against extreme cylinder pressures.

*For use in high performance street and race applications.