KIBBLEWHITE Cast Iron Valve Seat 10-SC380

Valve seat recession and microwelding failures cost racers races and street enthusiasts reliability. The KIBBLEWHITE Cast Iron Valve Seat 10-SC380 uses advanced powdered metal technology to deliver uniform hardness and exceptional thermal stability across leaded, unleaded, methanol, nitrous, and forced induction applications. When you're pushing RPMs hard, you need a seat material engineered for durability—not marketing promises.

This U.S.-made component has proven itself on both track and street, handling the demands of high-performance engines where standard seats fail. The high-density, iron-based construction resists the wear and microwelding that compromises valve sealing, maintaining consistent performance lap after lap or mile after mile.

• Premium iron-based alloy
• Powdered metal technology
• Uniform hardness construction
• Exceptional thermal qualities
• Microwelding resistance
• Recession-resistant design
• Steel valve compatible
• Track and street tested
• Leaded/unleaded fuel rated
• Methanol and ethanol compatible
• Nitrous-safe material
• Forced induction capable
• Made in U.S.A.
• Verify size before ordering