Kibblewhite Valve Spring Kit

• Product Details

  Valve Spring Kit.

  Since 1939, KPMI has taken great pride in their ability to design innovative performance improvements for valvetrains. This innovative ability has never been more apparent than with the development of the high tech lightweight racing valve spring kits for the incredibly stressed and torturous environment in today's high revving 4-stroke engines.

  The challenge to engineer a valvetrain that would outperform O.E.M. systems, that in some cases included titanium components, was not an easy one. This task would require the concentrated efforts of every member of KPMI's design team. It was apparent early on that an O.E.M. style spring with a bit more pressure was not going to be the complete answer for these engines. Working together as a team enabled KPMI to evolve with a "unified system" approach. In fact, these innovative high performance lightweight valve spring kits, would not only outperform factory parts, but outlive them as well.

  • Each KPMI spring kit is designed for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm, just to name a few.
  • Today KPMI7reg; proudly offers complete high performance lightweight valve spring kits for a host of applications.

  Note: Image is for reference only; actual product may vary according to fitment.

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• Fitment

• # Part Numbers

  Product Variant	Manufacturer Part #
  Kibblewhite Valve Spring Kit	30-3111, 30-30920, 40-40400, 30-30880, 30-31150, 30-30590, 30-31250, 30-30640, 30-31050, 60-60045, 40-40550, 96-96000, 40-40660, 40-40100, 60-60280, 91-91156, 91-91150, 80-80550, 80-80410, 60-60170, 60-60700, 60-60240, 30-30720, 30-31350, 80-8000, 80-80066, 80-80750, 30-31600, 60-60650, 80-82300, 30-32800, 30-30015, 30-30077, 30-33650, 40-41400, 96-96500, 30-33600, 40-41600, 96-96600, 30-30161, 30-4062
  Stainless valves / Aftermarket cams up to 0.395" IN / 0.370" EX	80-81400
  Titanium valves / Aftermarket cams up to 0.425" IN / 0.400" EX	80-80900

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