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Genuine KibbleWhite Products:


Kibblewhite Precision Machining, Inc. (KPMI) is a 75+ year old valvetrain manufacturing company supplying the Motorsport Industry and select OEM’s. They stock and distribute over 3,000 items around the world. No other company in the world has their product coverage for the motorsport industry. You will not find any other company with such an extensive product line solely dedicated to the motorsport industry. Kibblewhite Precision Machining, Inc. was founded by James L. Kibblewhite in 1936 and has since been taken over by William F. Kibblewhite, Jim’s son. William Kibblewhite took the solid foundation created by his father and dramatically expanded the product line to provide the vast coverage that it offers today.


Product Details:

  • Black Diamond™ valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond® valves feature one-piece construction and hard chrome stems
  • All valve guides are made of Ampco-45, a high-performance compound with 80% copper for great heat conductivity and 4-5% nickel for wear resistance
  • Spring sets contain springs and titanium upper collars; keepers and lower collars included as required
  • Valves and guides are sold each; spring kits come complete for one motor
  • Made in the U.S.A.



  • About Us:

    LeClare Powersports is a small-town Parts and Accessories store in Springfield, MO. Our low overhead allows us to offer better prices than the 'Big Boys', but our owner-operated store allows us to give our customers the great customer service they deserve.

    We only sell brand new, high quality GENUINE name-brand aftermarket parts...no junk, no knock offs and no "seconds". Buy with confidence!