SBC Small Block Chevy 283 305 327 350 400 Aluminum BLACK Long Water Pump High Volume Flow. This is a brand new Small Block Chevy Aluminum BLACK high volume LONG water pump. This high volume pump will flow up to 40% more than stock pumps and it will dissipate heat better than the regular OEM iron pumps. This water pump is lighter and features high quality roller bearings, custom machined impeller for maximum water flow, and reduced cavitation at high RPMs. This is the long style water pump, it must be used with pulley and brackets made for long water pumps.
Fits for 1969-87 small block chevy, 1973-89 light duty trucks. Long water pump for chevy 283, 305 327,350 400 small block engines.
High volume black aluminum mechanical water pump. Block to hub measurement is 6 15/16. Large 3/4" bearing with 5/8" shaft. Bigger pump impeller & Larger cavity size. Package includes: you will get what the picture shows. P Professional Installation is Highly Recommended (No Instruction and Wiring Diagram Included).