Fits 1966–1984 Big Twin engines (except 1980–1981). Increases mid-range and top-end power; idle is unaffected. Check spring travel and clearances on 1980+ models.
Active filters
Bolts into 1966–1984 Big Twin engines (except 1980–1981); increases mid- and high-rpm power while preserving idle.
Great street cam for 84–88-inch strokers; upgraded from the #6 grind with strong torque from 2,200–6,500 rpm.
High-quality heat-treated cam drive component, made in the U.S.A.; recommended for professional installation.
Precision sprocket spacers to restore chain alignment. Made in the U.S.A.
Precision spacers that improve drivetrain alignment and durability. Made in the U.S.A.
Durable spacers for cam drive sprockets that maintain chain alignment and extend component life.
Precision-machined spacers that ensure correct cam drive sprocket alignment and reduce wear. Made in the U.S.A.
Pack of five oil screens for Shovelhead engines, made in the U.S.A.
Precision-machined component that ensures proper spacing and alignment of rotating drivetrain parts. Made in the USA.
High-strength replacement springs for oil pump relief valves. Made in the USA.
High-quality OEM replacement bearing spacers for the left-side crankcase. Made in the U.S.A.
High-quality OEM left-side crankcase bearing spacers. Made in the U.S.A.