749000 Valve Seat OD 1 630 ID 1 180 Th 385

AV&V valve seats are engineered from a highly alloyed material designed to withstand the intense thermal and mechanical stresses within a Harley-Davidson cylinder head. These seats feature a radiused edge to facilitate a smoother press-fit installation and are compatible with both leaded and unleaded fuels. The alloy is specifically formulated to be easily machined using standard cutters or stones, yet it work-hardens during the engine's initial running phase to provide long-term resistance against valve pounding. AV&V is a trusted name in valvetrain components, offering superior heat dissipation compared to standard replacements. These components are essential for head rebuilding projects where maintaining precise valve geometry is critical. Sold each.