Allstar Performance SB Chevy Aluminum Short Water Pump HYPLLRG11M61FIA Start with a 1/4" center

Start with a 1/4" center hole and use the fixture to locate and drill 1/8" holes for mounting the springs

a center support and mounting hinges for each blade

Carbureted Engines: E85 up to 1050 FWHP - naturally aspirated up to 840 FWHP - forced air induction

the Aeromotive A2000 is a versatile force to reckoned with and stands alone as a big carbureted fuel pump

Suitable for use with gasoline fuels only

Allstar Performance SB Chevy Aluminum Short Water Pump HYPLLRG11M61FIA Start with a 1/4" centerPopular short style water pump that was originally used on pre 1969 small block Chevrolets. Pumps are built using all new components and an aluminum body for added weight savings over original cast iron pumps. Pump features a 3 4" main shaft and bearings with a 5 8" pilot and a billet steel hub drilled for both small and large fan bolt patterns, making this a good choice for street and mild performance vehicles. Block mount to fan hub dimension is 5 5