These S&S camshafts are especially designed for the S&S cast Pro Stock engine. The cams are designed so that the position of the cam lobes can be adjusted on the shaft, allowing the engine builder to customize the timing of the cams.
Lobes are meant to be welded in place when set to the desired position. Typical intake center line angle range is 105° to 116°. Typical exhaust centerline angle range is 110° to 116°. Pro Stock camshafts are available for 1986-1990 (four-speed) cam geometry only.
| Pro Stock Cam Specs |
| Valve Timing Open/Close |
Valve Duration |
Valve Lift 1.625:1 Rocker Ratio |
Centerline |
Lift @ TDC
|
| Intake |
Exhaust |
Intake |
Exhaust |
.800"
|
Intake |
Exhaust |
Intake |
Exhaust |
| Adjustable |
Adjustable |
279° |
298° |
Adjustable |
Adjustable |
Adjustable |
Adjustable |