CAMS FOR BIG TWIN EVOLUTION ALL YEARS

Time tested and track proven Andrew's cams have computer enhanced design features that provide a superior combination of performance gains and reliability without sacrificing component longevity. Installation instructions included. Timing and Duration measured at .053" cam lift.

Listed for reference: 1984/1987/Later OE cam is 212(DEGREE) intake, 202(DEGREE) exhaust, .472" lift on both valves. Timing 03/39 54/02. Valve lift .495" .495". Duration 222 236. Grind OEM (L) 1988/1991.

Listed for reference: 1992/Later OE cam very close to 1984/1987 specs. California cams are approximately 178(DEGREE) duration. Fuel injected "0" cam is 200(DEGREE) duration intake and 216(DEGREE) duration exhaust.

Mid-USA Part Number: 66881

UOM: EA