The Cometic Super Sidewinder .040 head gasket for S&S 4 1/8 in applications is built to reduce required clamp load while improving seal distribution. Its design aims to conform load across the sealing area, reducing bore distortion and eliminating the need for sealants or re‑torque in supported assemblies. Cometic emphasizes tested materials and sealing methods to support reliable top‑end performance.
Cometic S&S 4 1/8in Super Sidewinder .040 Head Gasket