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

