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The Cometic Super Sidewinder head and base gasket set for S&S 4 1/8 in applications pairs a .027 head gasket with a .010 base gasket to match specific deck and bore setups. The design focuses on even load distribution and reduced bore distortion, helping to avoid sealants or repeated re‑torque. Cometic’s testing regimen includes dynamometer and on‑road validation to confirm sealing performance.
Cometic S&S 4 1/8in Super Sidewinder .027 Head Gasket/.010 Base Gasket
