Wiseco W6379 Top End Gasket Kit HD 1340 Evo 3-3/4" Bore 1992-1999

The Wiseco W6379 is a complete top end gasket kit designed for 1992–1999 Harley-Davidson Big Twin Evolution 1340cc engines built around a 3-3/4" (95.25mm) bore. Engineered specifically to complement Wiseco's performance piston lineup, this kit provides everything needed for a thorough and reliable top end rebuild.

Kit Includes:

• Head gasket(s)
• Base gasket(s)
• Exhaust gasket(s)

Key Features:

• OEM+ quality materials — designed and engineered in-house by Wiseco for precise fitment and sealing performance
• 100% compatible with Wiseco forged pistons and related components for the HD 1340 Evo Big Twin platform
• Purpose-built for 3-3/4" bore applications, including big bore kit builds on the 1340 Evo engine
• Covers all critical top end sealing surfaces for a complete and confident rebuild

Wiseco has been the industry standard for high-performance forged pistons and engine components for over 70 years. The W6379 gasket kit takes the guesswork out of sourcing individual gaskets by bundling all required top end sealing components into one convenient kit — the ideal complement to any 1340 Evo top end rebuild or big bore conversion.