Cometic C9894-025 HD Twin Cam 100mm Bore .025" EST Head Gasket Pair

The Cometic C9894-025 is a high-performance head gasket pair designed specifically for Harley-Davidson Twin Cam engines with a 100mm bore size. These gaskets feature Cometic's EST (Extreme Sealing Technology) construction with a compressed thickness of .025 inches, providing exceptional sealing performance for high-compression applications.

Key Features:

• 100mm bore diameter designed for big bore Twin Cam applications
• .025" compressed thickness for precise compression ratio tuning
• EST (Extreme Sealing Technology) multi-layer steel construction
• Includes pair of head gaskets for complete cylinder head installation
• Superior heat resistance and durability compared to stock gaskets
• Eliminates the need for re-torquing after initial installation
• Manufactured from high-grade stainless steel with advanced coating technology

Cometic gaskets are engineered to withstand extreme temperatures and pressures, making them ideal for performance builds, forced induction applications, and engines running higher compression ratios. The multi-layer steel design ensures consistent clamping pressure and maintains seal integrity even under severe thermal cycling.