Long Pump Small Block Chevy Three Groove Crank

Triple groove long water pump crank shaft pulley for a Small block. The pulley is a Steel Pulley made by GM. This is not a generic aftermarket pulley.   The inside two pulleys are a smaller diameter than the outside pulley. 

Pulley Diameter: inside: 7" outside: 7-3/4"

This is the only pulley we sell for this application.