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Racing Spring Kit, H.T. Steel, 0.460" Lift, Triumph®, 750, 1973-1983

Racing Spring Kit, H.T. Steel, 0.460" Lift, Triumph®, 750, 1973-1983


Regular price $158.28 USD
Regular price $158.28 USD Sale price $158.28 USD
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 Since 1939, KPMI® has taken great pride in our 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. 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.

Installation Instructions Click Here
Type Intake/ Exhaust
Retainer Material H.T. Steel
Valve Lift 0.460"
Installed Height 1.310"
Seat Pressure 90#
Open Pressure 220#
@ Lift 0.460"
Note Brand new state of the art finite element analysis software has allowed the KPMI® engineering department to reduce the mass of our heat treated steel retainers. Lightening holes have been added to the steel retainers without sacrificing any strength or durability. All shoulders and cross sections were also analyzed for other opportunities to further reduce mass. These efforts led to mass reductions of up to 25% over the O.E.M. retainers.  ​
Unique Identifier No. FR327789_01GAUSt


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