KPMI® Spring Kits (Complete)
Kibblewhite® offers a complete line of performance and racing spring kits for a wide variety of valvetrain applications.

KPMI® Valves
Black Diamond™: CNC machined from one-piece forgings of EV8 Stainless Steel. Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear.
Tensilite®: CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy. Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion resistant.
White Diamond™: CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751. Electroplated with a 360º anode, to produce an even coat of the highest grade hard chrome finish.

KPMI® Guides
C630 Bronze Guides: Tough and wear resistant with excellent thermal qualities. This bronze alloy allows for tighter clearances than other materials. Creating better valve and seat sealing, as well as superior oil control.
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 cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

KPMI® Springs
Advanced Spring Design: Springs are engineered for each specific application using proprietary spring design, simulation, and analysis software.
Premium Ground Chrome Silicon Wire: To insure maximum spring life, springs are heat treated, shot peened and X-rayed at regular intervals to check for inclusions.

KPMI® Retainers
Heat Treated Steel Retainers: KPMI's proprietary heat treatment process creates a hard outer shell with a non-brittle core, resisting wear and maximizing toughness.
Titanium Retainers: To further reduce reciprocating mass, KPMI offers titanium retainers as an alternative to steel.
High Performance Coating: CrN coating for high performance applications, to decrease friction and improve wear. Available for any application on request
Custom Retainers Available: KPMI® is ready to design a custom retainer to your specifications.

KPMI® Seals
High Temperature Seals: KPMI® Viton® seals operate at a higher temperature than other seal materials.

KPMI® Valve Seats
Powdered Metal Seats: Have exceptional thermal qualities, wear resistance and resistance to micro-welding. This material resists corrosion and burning, and is compatible with all types of fuel blends.
Nickel Aluminum Bronze Seats: The product of a two year KPMI® R&D effort, this proprietary bronze alloy is designed specifically for use with titanium valves in high performance applications.

KPMI® Tappets
Solid Construction: Machined from aerospace quality solid steel bar stock.
Proprietary Heat Treatment Process: Creates a hard outer shell with a non-brittle core, resisting wear and maximizing toughness
High Performance Coating: CrN coating for high performance applications, to decrease friction and improve wear. Available for any application on request
Custom Tappets Available: Send KPMI® your requirements so we can develop your next tappet

KPMI® Keepers
Wide Variety of Styles: KPMI® offers radius bead, triple radius bead, and square bead style keepers.
High Tensile Heat Treated Steel: Forged or single point machined

KPMI® Valve Adjustment Shims
Heat Treated Steel: Ground and lapped to precise heights