SIFTON STEEL R TYPE INTAKE VALVE WITH 1-15/16 HEAD. INTAKE VALVES ARE 3.68 LONG.
R TYPE VALVES ARE .080 LONGER THAN THE STOCK VALVES AND HAVE A TULIP SHAPE HEAD FOR MAIXIMUM FLOW. VALUE FACE DIAMETERS ARE ALSO LARGER WHICH REQUIRE A LARGER SEAT GROUND IN THE THE HEAD.
FIT