500 / 472 / 425 Cadillac Under-Drive MTS Billet Aluminum Pulley Set.

Product Details and Benefits.

* 2-Groove Billet Aluminum Crank Pulley.

* Single Groove Billet Aluminum Waterpump Pulley.

*CNC Machined and Hard Anodized for Unbeatable Wear Protection.

* 12% Under-Driven for Increased Horsepower and Fuel Economy.

* Crank Pulley -

          Inside Groove Specially Designed to Align with Factory Power Steering and A/C.

          Outside Groove Aligns with Waterpump Pulley AND Alternator.

* NO SMOG PUMP REQUIRED for Proper Alignment and Adjustment.

* Part # BL57.

*1968 - 1973 Factory Balancer MUST Be Used for Proper Belt Alignment.  Used Balancers Available for an Additional $35.00 with Purchase of the Pulley Kit.

Special Price

$229.00