Engine

Progressively wound springs using Kobe super-clean, chrome silicon-based wire that is heat treated and shot peened Tight-tolerance, FEA-designed hardened steel Posi-LocÖ style upper retainers to ensure correct assembly height and resist keeper "pull...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves Extends the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black DiamondÖ intake valves Extend the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black DiamondÖ intake valves Extend the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts Includes...

Full set of Black DiamondÖ stainless steel standard size valves for engine applications listed All valves are impregnated by a special process to a depth of .002ö with a surface buildup of .0002ö This process improves wear properties, reduces friction...

Spring kit is designed with increased spring rates and high lift compatibility compared to the stock springs Compatible with boosted or turbocharged applications CNC-machined titanium retainers and Cr-Si dual springs provide valvetrain control at high...