Small Block Chevy LWP Black 2/3 Groove Power Steering Water Pump Crankshaft Pulley Kit. Will Not fit Press On Power Steering Pumps. Will not work on Stock Corvette or Early Chevy trucks with Stock water pumps. Will Not fit LT1 Or LT4. This is a brand new Small Block Chevy Aluminum Pulley Kit. The Water Pump Pulley is Double Groove and comes with water pump pulley bolts. The Crankshaft Pulley is Triple Groove. They are constructed of thick gauge aluminum and with a high quality Satin Aluminum finish. This kit also includes a Brand New Aluminum Machined power steering pump pulley. This is a Black Machining FINISH Dual V-groove water pump pulley kit. 5- Double Groove Long Water Pump Pulley 6.60 Diameter. Triple Groove Long Water Pump Crank Pulley. Groove Saginaw “Key Way” Style Power Steering Pulley. Professional Installation is Highly Recommended.