HP Aluminum Water Pump 65-68 BBC Short

The HP Aluminum Water Pump 65-68 BBC Short from PRW Industries is engineered for big block Chevy engines demanding reliable, high-performance cooling circulation. Built for classic muscle car builders and street rod enthusiasts who refuse to compromise on cooling efficiency, this mechanical water pump replaces factory units with a lighter-weight aluminum construction that reduces parasitic drag and improves overall engine efficiency. Whether you're restoring a vintage Chevrolet or upgrading a performance build, this short-design pump delivers the flow your big block needs without adding unnecessary weight.

Constructed from durable aluminum, the HP water pump features a compact short-design profile ideal for tight engine bay installations and custom headers setups where standard deep-sump pumps create clearance issues. The 5/8-inch pilot diameter ensures proper fitment and secure mounting on BBC block applications, while the mechanical drive maintains direct, shaft-driven operation for consistent cooling performance across the entire RPM range. Aluminum construction reduces weight compared to cast iron counterparts, lowering underhood mass and improving weight distribution—critical factors in any serious performance or restoration project where every pound matters.

This pump is ideal for 1965–1968 big block Chevy applications, fitting seamlessly into original and heavily modified engine bays alike. Mechanics and fabricators favor the short design for custom cooling systems, serpentine conversions, and high-horsepower builds where standard pumps interfere with aftermarket manifolds or tight accessory placements. Installation requires basic mechanical skill and standard hand tools; verify your engine's year and block configuration before ordering to ensure proper fitment with your existing cooling system and serpentine or belt-drive setup.