8856BK – Pulley, Water Pump SB Chevy LWP Double Groove (Black Aluminum) Fits Chevy small block long water pump engines....
8856BK – Pulley, Water Pump SB Chevy LWP Double Groove (Black Aluminum)
Will not work on Stock Corvette or Early Chevy trucks with
Stock water pumps.
This pulley has: (6-5/8" Diameter) and 5/8" pilot hole
If you going to run A/C you will need a 2 groove.