Engine

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem...

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem...

Cylinder looks just like stockNickel silicon carbide plated for longer life

Includes cylinder, piston kit and gasketsMatched with vertex pistons to ensure longevity, performance and reduce engine noiseReplacement piston, gaskets, and ring sets availableCylinder looks just like stockNickel silicon carbide plated for longer...

Includes cylinder, piston kit and gasketsMatched with vertex pistons to ensure longevity, performance and reduce engine noiseReplacement piston, gaskets, and ring sets availableCylinder looks just like stockNickel silicon carbide plated for longer...

New replacement cylinder headIncludes cam caps and cam cap boltsIncludes C630 (nickel/aluminum/bronze) valve seats and guidesCompetition valve jobShortened valve guides to accept higher lift camsUnshrouded combustion chamberBlended bowlStock shaped...

2-Piece Cast Aluminum ConstructionOil Filter Access for Hassle Free Filter ChangesIncreased Coolant Flow at all RPM RangesPatented Nautilus Style Impeller for Hydrodynamic Efficiency

2-Piece Cast Aluminum ConstructionOil Filter Access for Hassle Free Filter ChangesIncreased Coolant Flow at all RPM RangesPatented Nautilus Style Impeller for Hydrodynamic Efficiency

2-Piece Cast Aluminum ConstructionOil Filter Access for Hassle Free Filter ChangesIncreased Coolant Flow at all RPM RangesPatented Nautilus Style Impeller for Hydrodynamic Efficiency

2-Piece Cast Aluminum ConstructionOil Filter Access for Hassle Free Filter ChangesIncreased Coolant Flow at all RPM RangesPatented Nautilus Style Impeller for Hydrodynamic Efficiency

2-Piece Cast Aluminum ConstructionOil Filter Access for Hassle Free Filter ChangesIncreased Coolant Flow at all RPM RangesPatented Nautilus Style Impeller for Hydrodynamic Efficiency

Cast from the highest quality aluminumSeals perfectly to keep out dirt and moistureCovers come with gasketsHolds clutch cable more securely (Yamaha YZ models)Give your bike the factory "WORKS" lookCover gaskets may be used with stock or factory covers