Read more Tips: Chrome Finish Long Water Pump For Big Block Chevy Welded 1 3/4" inlet port Standard Rotation Gaskets Included Specification: Welded 1 3/4" inlet port for lower hose Billet body and impeller provide tight clearances for excellent flow characteristics. The water pump will clear cam belt drives and most blower drives. This pump is designed to flow 35% more coolant than your standard pump. Features a CNC machined iron impeller, a ribbed aluminum housing, and a heavy duty ball/roller bearing assembly. Fitment: Fits Big Block Chevy 396, 402, 427 & 454 V8 engines Note: This is the long style water pump, it must be used with pulley and brackets made for long water pumps. Read more Chrome Finish Long Water Pump for SBC 350 383 Chrome Finish Short Water Pump for BBC 396 427 454 2 Groove Alum Water Pump Pulley SWP for SBC 327 2 Groove Power Steering Pump Pulley for SBC BBC Crankshaft Pulley 2 Groove For SB Chevy LWP SBC 350 3 Groove Aluminum Crankshaft Pulley SWP for SBC 350 Fitment SBC BBC SBC SBC BBC SBC SBC