70735 255 LPH In-Tank Fuel Pump Assembly with 3/8" Outlet

Fuel pump assembly, in-tank, 255 nominal liter per hour Walbro Pump, 3/8″ OD supply, pinched off return. In-tank pumps are the way to go for long life and quiet operation in any EFI application. We enlarge the 3/8″ outlet to .312″ ID which increases the minimum flow area by 55%. The Walbro GSS340 supplies 63 gph @13.5 volts at 58psi which supports 680 flywheel hp with a 10% safety factor. Includes inlet filter sock, gasket, retaining ring and Walbro flowrate vs pressure chart. Requires 70750 High Flow Fuel Return Kit. For 06AN supply adapter fitting see Breeze #21608. For quick-connect pump-to-filter hose see Breeze #70748.
Note: The actual voltage a pump sees makes a big difference. The typical voltage regulator will keep the voltage between 13.5 and 14.5. If the charging system fails and your car is temporarily running off of 12volts from the battery, then at 58psi this pump supports 567 hp with a 10% safety factor.