Camshaft, 307 Series, Honda GX240, GX270, GX390, 420 Predators
307 SERIES - Race cam with awesome mid-range power
Fits Honda GX240 thru GX390, 420 Predators, 460cc OHVs, and most other 9 thru 15 hp Honda Style OHV Motors
ALL OUT RACE CAM FOR BIG BLOCKS (GX390s and 11/15 hp Honda Style OHVs) on Small Ovals or requiring extra torque
307 SERIES camshaft for serious motors and big tracks. Approx .307 lift and 260 duration. This cam was 6 month in development. Special Ramp Designed for running 12 to 1 or higher compressions using Race Gas or Methanol. Use with Dual springs and 1.3 rockers. This is the cam for 30+ hp motors. RPM Grind - 7,500+ RPM. 12.0 to 1 compression or more. Dual Springs Required, High HP grind for 1/4 mile+ tracks.
Note: Honda Blocks or crankshaft may require clearancing to clear camshaft lobes.