INTAKE and EXHAUST VALVES
VALVE SPRING KITS
Black Diamond™ Valves:
All KPMI® Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.
White Diamond® Valves:
We fully CNC machine our White Diamond® Valves from a one-piece forging of either EV8 Stainless Steel or Inconel-751.These materials have proven heat and corrosion resistance properties. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Strict attention is paid to the surface preparation of the valves, and the purity of the chrome is closely monitored. A 360 degree anode is used to produce the highest possible grade of hard chrome finish. White Diamond® Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics.
KPMI® O.E.M. Replacement Tensilite® Titanium Valves
KPMI® Recommended OEM Replacement Valves
Exceeds OEM Specifications
Your OEM Alternative
Compatible with O.E.M. Spring Kits
KPMI® has recognized a need for direct OEM replacement valves that meet KPMI® standards for race quality performance and endurance, while also being affordable. To meet this need KPMI® has new product line selected from existing or newly developed KPMI® valves for select applications.
If you look closely at the KPMI® Tensilite® titanium valves, you will notice the U.S. milled one piece forged design, precision ground stems and the CrN PVD coating covering the entire valve. In cases where the OEM uses steel exhaust valves, KPMI® has elected to implement our race proven line of Black Diamond™ stainless steel exhaust valves, rather than create a new line of valves made from a lesser quality material to match the OEM. For your next factory rebuild, upgrade to KPMI® and gain yourself some performance and reliability, while saving yourself some money.
Note: These valves are intended as O.E.M. replacement valves and are completely compatible with the O.E.M. spring kits. However, experienced engine builders, who are running aggressive camshafts or higher than factory RPM’s may find the combination of the O.E.M. Style Valve and KPMI’s Lightweight Racing Spring Kits advisable.
KPMI® Valves Springs:
KPMI® valve spring are wound from Premium Kobe Super-Clean Chrome Silicon wire. KPMI® valve springs are heat-treated, stress relieved, and shot peened to insure maximum performance and life. 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.