Steel 2-groove V-belt crankshaft pulley for Chevrolet small block engines using a long water pump. Measures 6.875 inches in diameter with a three-bolt mounting pattern and a depth of 2.875 inches. Available in chrome or black finish. Designed for standard accessory drive speeds and must be paired with a matching Summit or Trans-Dapt steel water pump pulley for proper belt alignment. A durable, clean upgrade that helps reduce accessory drag and maintain reliable drive function. Sold individually.