96″ or 103″ TWIN CAM ENGINES 2007 OR LATER MODELS
4’/8″ BORE S&S CYLINDER KIT (CRANKCASE BORING REQUIRED)
58mm THROTTLE BODY WITH HIGH FLOW INJECTORS
VARIABLE PRESSURE CLUTCH UPGRADE
CRANKSHAFT REQUIRES SOME TRUEING AND WELDING
UPGRADE THE LEFT SIDE CRANK BEARINGS TO A TIMKEN
SAME CAMS AND HEADWORKS AS STAGE 3
* * * FOR AN EVEN BIGGER PUNCH ADD .630″ LIFT CAMS,ROLLER ROCKERS AND STAGE 4 HEAD WORK WITH 1.980″ VALVES * * *
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