We have re-designed the whole front pulley assembly because GM have stopped making the original drive cambelt gear (made from a sintered material). We have produced an ultralight weight cambelt drive gear and alternator drive pulley assembly. The new drive gear is machined from solid steel and therefore much stronger than the original and because we have been able to design the alternator pulley at the same time, the unit is far more compact. It also incorporates an additional keyway to allow it to be used with some steel cranks that have 2 keyways.

 

The 4-groove poly-vee type pulley helps to prevent thrown alternator belts & reduces the alternator speed, ideal for use in competition cars.

 

This version is supplied without the trigger wheel and weighs approx. 0.6kg, but for those wishing to run an external trigger wheel, please see CRK-PLY-2-SBD-01K-TW.