Aluminum High Performance Water Pump with bolts and gaskets. For: Small Block Chevy Long Pump. Replacement for GEN I small block. NOT LT1 or older short pump versions.Will work on all Chevy V8 GEN I small blocks from 1955 to 1991 but must use long water pump pulleys and brackets. High-flow mechanical water pumps provide that extra cooling power your high-performance engine demands. They are lightweight and flow at a rate up to 40% over stock pumps. From top to bottom, these mechanical pumps are designed for greater performance and reliability. They feature an 8-blade, cast aluminum anti-cavitation impeller. Its 5/8" shaft is driven by heavy-duty bearings and seals, and the crank hub is 1/2" thick for added strength. These mechanical water pumps are cast from lightweight A356 aluminum and heat-treated to T6 hardness. This not only provides strength, but aluminum works to manage heat far better than cast iron. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Engine Cooling Components\Water Pumps". The seller is "gearheadvg" and is located in this country: US. This item can be shipped to United States, Sudan, Burma, Greenland, Bermuda, Saint Pierre and Miquelon, Canada, Mexico.