Cometic C9880-051 MLS Head Gaskets 4.0" Bore .051" S&S TP Harley Evolution (Pair)

The Cometic C9880-051 Multi-Layer Steel (MLS) head gaskets are engineered specifically for Harley-Davidson Evolution engines equipped with S&S or TP (Truett & Osborn Performance) 4-inch bore cylinders. This set includes one pair of gaskets with a precision .051-inch compressed thickness, providing optimal sealing for high-performance V-Twin applications.

Multi-Layer Steel Construction:

• Features multiple layers of stainless steel for superior strength and rebound characteristics
• Outer layers are embossed and coated on both sides with Viton rubber material for exceptional sealing
• Viton coating is heat resistant up to 250°C (482°F) for extreme temperature environments
• Center layer is uncoated stainless steel that provides structural support
• Corrosion-resistant construction ensures long-term durability

Advanced Sealing Technology:

• Load Control Embossments (LCE) promote even torque distribution across the gasket surface
• Reduces bore distortion for improved piston ring seal and increased power output
• Accommodates various surface finishes and load conditions
• No additional sealants or re-torquing required
• Manufactured from premium fuel-resistant materials that will not creep, crack, or become brittle

Specifications:

• Bore Size: 4.000 inches
• Compressed Thickness: .051 inches
• Application: S&S and TP Evolution engines
• Quantity: 1 pair (2 gaskets)
• Made in USA

Cometic MLS head gaskets deliver maximum sealing performance for high-output engines, providing the reliability and durability demanded by performance enthusiasts and professional builders alike.