Twin Power 66-84 Shovelhead Big Twin Head Gasket Std Bore .040 MLS Replaces H-D 16770-66 Pr

Features

• Twin Power™ head gaskets deliver premium sealing performance, ensuring maximum compression, reliability, and durability for Harley-Davidson Big Twin and M8 engines.
• Includes two high-quality head gaskets designed for an airtight seal and maximum leak prevention
• Precision fit for consistent compression and longevity
• Multi Layer Steel design for superior sealing