Have a BIG Bore or Stroker Motor above 1350CCs?

If you answered YES, then we have a camshaft you might be interested in purchasing and installing into your high performance Revolution engine, we dubbed it the SINISTER Camshafts.

’02-’17 VRSC/ VROD SINISTER CAMSHAFTS 

THESE CAMS REQUIRE SPRINGS THAT CAN HANDLE UP TO .500 LIFT, STOCK SPRINGS WILL NOT WORK!

TOTAL VALVE LIFT ON SINISTER CAMS

INTAKE .497 / EXHAUST .468 after lash!

Fitzgerald testing showed on a 1402cc engine that we performed a before and after run to make more HP and TQ then our closest competitor. In short time we will be performing test on other engine sizes.

Test Before 157.8 HP / 105.20 TQ

Test After    165.6 HP / 108.55 TQ