The Cometic head gasket for S&S 4in bore Super Sidewinder engine-only applications (with .040in head gasket) is designed to require less clamp load and to conform load distribution across the sealing area. That helps reduce bore distortion and generally removes the need for additional sealants or re-torquing, offering a dependable sealing choice for the specified Super Sidewinder application.
Cometic S&S 4in Bore Super Sidewinder Engine Only w/.040in H/G, V113