Top End

Piston Kit - 86.97 Mm - Honda Trx400Ex/X 23234200 Honda -- TRX400EX Sportrax -- (2002, 2003, 2005, 2001, 2004); Honda -- TRX400EX FourTrax -- (2000, 1999); Honda -- TRX400X -- (2013, 2009, 2012, 2014); Honda -- TRX400EX -- (2007, 2006, 2008)

Piston Kit - 85.97 Mm - Honda 23162100 Honda -- TRX400EX FourTrax -- (1999, 2000); Honda -- TRX400EX Sportrax -- (2002, 2003, 2005, 2001, 2004); Honda -- XR400R -- (1996, 1997, 1999, 2001, 2002, 1998, 2003, 2000, 2004); Honda -- TRX400X -- (2013, 2012,...

Piston Kit - 85.47 Mm - Honda 23162050 Honda -- TRX400EX FourTrax -- (1999, 2000); Honda -- TRX400EX Sportrax -- (2002, 2003, 2005, 2001, 2004); Honda -- XR400R -- (1998, 2003, 2000, 2004, 1999, 1996, 1997, 2001, 2002); Honda -- TRX400X -- (2009, 2013,...

All pistons are heat treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeCast piston kits are gravity cast aluminum alloy (not...

All pistons are heat treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeCast piston kits are gravity cast aluminum alloy (not...

Piston Kit - 100.95 Mm - Yamaha 23104100 Yamaha -- Raptor 660R 4x2 -- (2001, 2004, 2003, 2002, 2005); Yamaha -- YXR 660F Rhino 4x4 -- (2006, 2005, 2007, 2004); Yamaha -- YFM 660 F Grizzly 4x4 -- (2003, 2004, 2002)

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

All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistanceMade in the U.S.A. KTM -- 450 SX-F -- (2015, 2013, 2017, 2016, 2018, 2014); KTM -- 450...

Black Diamond? valves are CNC machined from one-piece forgings of EV8 Stainless SteelBlack Diamond? proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wearMade in the U.S.A. Husqvarna -- FC 450 -- (2016,...

Black Diamond? valves are CNC machined from one-piece forgings of EV8 Stainless SteelBlack Diamond? proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wearMade in the U.S.A. Husqvarna -- FS 450 -- (2017,...

By taking advantage of the latest development in valve spring wire chemistry and manufacturing techniques, By coupling these developments with strict KPMI? design protocols and employing multiple design simulation and FEA analysis software, we were we...

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