Pulley size ? on cooling

I think I have it solved! Thanks @Rat Bastid , I gave CVF a call and they pointed me to the High Flow pulley on their site. It is just the 2 groove crank pulley. I guess if I ever want to put power steering on the car I would have the extra groove. I do wish they made the same size crank pulley in single groove though.

  • 1 Groove Water Pump Pulley (SCRL1WP) = 6.4"
  • 2 Groove Crank Pulley (SCRL2CR) = 6.4"
  • 1:1 ratio
Chrysler Small Block Crankshaft Pulley 2V - High Flow


There should be a pulley that will get you 3% over. I’ll find my receipt and post the part numbers.