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This Cometic head gasket is a stock-profile replacement for Twin Cam cylinders, sized for a 4.210 in bore with a 0.020 in thickness. The gasket design conforms load distribution across the sealing area and reduces bore distortion by requiring less clamp load. Its construction eliminates the need for sealants or re-torque in many setups, providing dependable sealing for routine and high-stress cylinder conditions.
Cometic 4in Twin Cam Cyl. Stock Profile 020in Rcm 4.210in Bore
