Pre-Evo – Engine & Gaskets

DescriptionBlack Diamond™ Engine Valve KitAll valves are fortified by a special process to a depth of .002” with a surface buildup of .0002”This pr...

DescriptionC674 Valve GuideSofter Manganese guides are easily reamed, and then can be delicately finished with Kibblewhite high quality ball honesW...

DescriptionWhite Diamond® Engine ValveDesigned using Finite Element Analysis (F.E.A.) software, and profiles are tested on a computerized flow benc...

DescriptionC674 Valve GuideSofter Manganese guides are easily reamed, and then can be delicately finished with Kibblewhite high quality ball honesW...

DescriptionTop End Service KitKit includes all necessary parts for a complete top-end service/rebuild: pistons, piston rings, piston pins, gaskets,...

DescriptionBlack Diamond™ Engine ValveBlack Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless SteelLightweight, strong, one...

DescriptionWhite Diamond® Engine ValveDesigned using Finite Element Analysis (F.E.A.) software, and profiles are tested on a computerized flow benc...

DescriptionTensilite® Titanium Engine ValveTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloyFinished wi...

DescriptionTensilite® Titanium Engine ValveTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloyFinished wi...

DescriptionTop End Service KitKit includes all necessary parts for a complete top-end service/rebuild: pistons, piston rings, piston pins, gaskets,...

DescriptionBeehive Valve™ Spring KitProgressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and ...

DescriptionBlack Diamond™ Engine ValveBlack Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless SteelLightweight, strong, one...

DescriptionBeehive Valve Springs Only KitUnique features of this spring include is beehive variable rate wind to reduce the chances of spring surge...

DescriptionTensilite® Titanium Engine ValveTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloyFinished wi...

DescriptionBlack Diamond™ Engine ValveBlack Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless SteelLightweight, strong, one...

DescriptionValve Guide SealsAll valve seals are made of 100% solid Viton® for long lifeMeet or exceed OEM specificationsMade in the USAWhen using K...

DescriptionValve Spring RetainersEngineered with advanced computer softwareFEA stress analysis allows engineers to lighten retainer without sacrifi...

DescriptionValve Guide SealsAll valve seals are made of 100% solid Viton® for long lifeMeet or exceed OEM specificationsMade in the USAWhen using K...

DescriptionBlack Diamond™ Engine ValveBlack Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless SteelLightweight, strong, one...

DescriptionSolid Viton® Valve Guide SealsSolid Viton® with tension springMade in the USASolid Viton® with tension spring.Fitment 1991-1994 HONDA CB...

DescriptionEngine Valve KitKits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves and ...

DescriptionBlack Diamond™ Engine ValveBlack Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless SteelLightweight, strong, one...

DescriptionBlack Diamond™ Engine Valve KitAll valves are fortified by a special process to a depth of .002” with a surface buildup of .0002”This pr...

DescriptionEngine Valve KitKits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves and ...