Three-groove V-belt steel crankshaft pulley for Chevrolet small block engines equipped with a short water pump. Measures 7.25 inches in diameter with a three-bolt mounting pattern and is available in either chrome or black finish. Designed for standard accessory drive speeds (not underdrive or overdrive), this pulley must be paired with a matching Summit or Trans-Dapt steel water pump pulley for correct belt alignment. A durable, clean-looking upgrade that reduces accessory drag and improves overall efficiency. Sold individually.