Engineered using advanced powdered metal technology, this KPMI valve seat blends specialized iron-based alloys to deliver exceptional wear resistance, uniform hardness, and outstanding thermal stability. It provides critical resistance against microwelding, burning, corrosion, and seat recession in demanding high-load and high-RPM environments.

Fully compatible with leaded and unleaded gasoline, ethanol, and methanol blends, this seat is built for both naturally aspirated and forced-induction cylinder head builds. Machinable with standard tooling and crafted with a generous leading-edge radius, it facilitates smooth installation and dependable performance on the street or track.

Key Features

Highlights

• High-density powdered metal alloy construction
• Resists microwelding, seat recession, corrosion, and burning
• Compatible with leaded, unleaded, ethanol, and methanol fuels
• Machinable using standard tooling
• Features a radiused leading edge for easier installation

Compatibility

Compatible with Harley-Davidson Shovelhead 74" (1966-1977) and Shovelhead 80" (1978-1983) engines, suitable for naturally aspirated and forced induction setups.