Sifton 45" WR Cam Set

Sifton 4 piece 45" WR cam set, for use with bushings, features the original design lobes by Tom Sifton in the late 1940's.
For use with roller tappets. *NOTE: The intake opens at 45° Before Top Dead Center .010 lift. The exhaust opens at 40° After Top Dead Center .010 lift. **NOTE: V-Twin purchased the Sifton company in the year 1998.