Crane Cams

139651

Crane 139651 PowerMax Camshaft

EAN: 0021174035636

UPC: 021174035636

Camshafts

Camshaft is hydraulic roller tappet
Intake and exhaust duration at 0.004 lift is 306 degree and 318 degree
Intake valve lift with factory arm ratio is 0.632
Basic operating RPM range is from 3800 to 7000 RPM
Exhaust valve lift with factory arm ratio is 0.632

The Crane PowerMax Camshafts have lobe patterns which are specifically designed to balance intake and exhaust flow. The camshaft uses lobes (called cams) that push against the valves to open them as the camshaft rotates; springs on the valves return them to their closed position. Intake duration at 0.050 lift is 244 degree and exhaust duration at 0.050 lift is 256 degree. Ratio of the rocker arm is 1.70.

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