James Cylinder Head Gasket Kit, 3 5/8" Big Bore For Harley-Davidson

.045" firering head (.042" final crush) & .020" RCM base gaskets; use of o-rings is not required due to head gasket design Fits: 84-99 Evo B.T.; 86-19 Evo XL (excl. XR1200). With 3 5/8" big bore cylinders Units: SET