Racing Valve Spring Kit by Kibblewhite®. Since 1938, KPMI has taken great pride in 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 OEM 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 OEM style spring with a bit more pressure was not going to be the complete answer for these engines.
Notes: This product is NOT legal for installation on vehicles required to meet CARB standards and/or registered in California and other states following CARB standards, including NY and ME
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 KPMI proudly offers COMPLETE HIGH PERFORMANCE LIGHTWEIGHT VALVE SPRING KITS for a host of applications.
KPMI® Guides must be installed when using cams greater than 0.430" valve lift.
Kibblewhite Precision Machining, Inc. (KPMI®) is a 79 year old valvetrain manufacturing company supplying the Motorsport Industry and select OEM's. Kibblewhite stock and distribute over 3,000 items to customers around the world. No other company in the world has product coverage for the motorsport industry. You will not find any other company in the world with such an extensive product line solely dedicated to the motorsport industry. KPMI® not only manufactures ready-made parts, they also provide contract manufacturing for OEM and other parties. Kibblewhite expert services include engineering, prototyping, and limited or full production runs.
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Part 1800552 fits the following machines