Andrews, gear drive cam shaft set 21G/.498"

99-06 Twin Cam (excl. 2006 Dyna) (NU)

.498" valve lift. Without inner & outer gears. These are available from S&S as 503606. An S&S (503566) or Andrews (503660) camshaft installation kit provides all parts for installation as bearings, gasket etc. Bolt-in. More torque for all around riding with stock compression ratio. and heavy bikes. Similar to EV23 for Evo B.T. Stock springs OK. 1700-5000 RPM. Note: The inner drive gears are not installed on Andrews camshafts and must be ordered separately. Installation will require specialty tools. Note: An outer drive gear set is also required for installing these cams and must be ordered separately.