Cometic C9976-T124-045 Twin Cam Head Gasket Kit .045" MLS 4.125" Bore

The Cometic C9976-T124-045 is a premium Multi-Layer Steel (MLS) head gasket kit engineered for 1999 and newer Twin Cam engines with S&S sidewinder rocker boxes. This heavy-duty gasket set features a 4.125" bore diameter and .045" compressed head gasket thickness, designed to handle high-performance and high-compression applications.

Key Features:

• Multi-Layer Steel construction with advanced sealing technology for superior reliability
• .045" compressed thickness head gasket for optimal compression ratios
• .020" base gasket included for complete top-end sealing
• 4.125" bore diameter accommodates big bore cylinder applications
• Specifically designed for S&S sidewinder top end configurations
• Compatible with 1999 and newer Twin Cam engines
• Exceeds OEM specifications for durability and performance

Cometic gaskets are manufactured using proprietary materials and processes that ensure consistent torque loading and improved combustion sealing. The MLS design allows for minor surface imperfections while maintaining a positive seal, making this kit ideal for both street and high-performance builds. This complete kit includes both head and base gaskets for a comprehensive top-end rebuild.