If you are looking for custom performance valvetrain… you have come to the right place!
Now you can put KPMI’s years of experience manufacturing valvetrain for the winners’ circle to work for you. KPMI’s state of the art engineering department calls upon the latest technologies in valvetrain design and manufacture to allow us to deliver exactly what you need for your high performance applications.
KPMI offers rapid prototyping services, one-offs, and short or full production runs. At KPMI we are standing by to put our experience and technology to work for you.
Please select the links below to begin... or give us a call to have an experienced staff member assist you.
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Custom KPMI Valves
Custom Valve Design Options
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Custom KPMI Valve Seats
Custom Seat Design Options
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Custom Seat Material Options
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Powdered metal seats
With the latest in powdered metal technology, KPMI’s R&D team was able to create a high density seat with exceptional wear resistance, resistance to micro welding, and good thermal qualities. This material is compatible with all types of fuel blends, resists corrosion and burning, and is machinable with standard tooling.
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Nickel aluminum bronze seats
The product of a two year KPMI R&D effort, this proprietary high copper, beryllium free bronze alloy is designed specifically for use with titanium valves in high performance applications.
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Custom KPMI Valve Guides
Custom Guide Design Options
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Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes, when valve jobs are performed.
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Custom Guide Material Options
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C630 bronze guides
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guide tough and wear resistant, and the aluminum brings work hardening characteristics. This bronze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior oil control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.
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Cast iron guides
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today’s engine. KPMI’s certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.
Ordering Information
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Custom KPMI Basewashers
Custom Basewasher Design Options
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Tight Tolerances for Precise Fit
Manufactured to tolerances that allow no excessive lateral movement. Correct fitment promotes longer component life and optimizes performance of the entire valve train.
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H.T. Steel
KPMI's proprietary heat treatment process creates a hard outer shell with a non-brittle core, resisting wear and maximizing toughness.
Ordering Information
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Custom KPMI Springs
Custom Spring Design
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Advanced Spring Design
Springs are engineered for each specific application using proprietary advanced spring design, simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass, and operating rpm.
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Premium Grade, Ground Chrome Silicon Wire
X-Rayed at regular intervals to check for inclusions, heat treated, and shot peened. Insuring maximum spring life.
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Custom KPMI Retainers
Custom Retainer Design
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Custom KPMI Seals
Custom Seal Design
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Custom KPMI Keepers
Custom Keeper Design Options
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Wide Variety of Styles
KPMI offers radius bead, triple radius bead, and square bead steel keepers. See keeper section in back of catalog for full selection.
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High Tensile Heat Treated Steel
Forged or single point machined.
Ordering Information
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Custom KPMI Tappets
Custom Tappet Design Options
Ordering Information
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