Compstar Comet Crankshaft
Lightweight Small Block Chevy
The new Compstar Comet is your answer to lightweight crankshaft needs for Small Block Chevy engines. Produced from 4340 forged steel that is triple heat-treated and nitrided, Compstar Comets are ready for long term, trouble free use.
Each Comet features gun drilled mains, lightened rods, pendulum cut counterweights, and a star flange. All journals are polished to 5Ra or finer and match sized to within .0003 inch or less throughout the entire crankshaft. Comets are produced with .125 journal radii and require performance grade bearing inserts. Currently, Comets are only available with 350 mains.
Comet crankshafts are available in these configurations:
350 Main/ 2.100" Pin
Strokes available: 3.480" | 3.500" | 3.625" | 3.750" | 4.000"
350 Main/ 2.000" Pin
Strokes available: 3.335" | 3.480" | 3.500" | 3.625" | 3.750"
350 Main/ 1.888" Pin
Strokes available: 3.480" | 3.500"
Comets have a very high strength to weight ratio
Comets are available in a variety of journal sizes
Comet cranks weigh 43 lbs. or less
Comet lightweight SBC front view