Blueprinted Melling 10688 Ford 302, 5.0 High Volume Race Pump. Fits all 289, 302,5.0.
A MELLING HIGH-VOLUME BLUEPRINTED RACE OIL PUMP.The pump is a brand new Melling 10688 Race Pump Blueprinted by PRECISION OIL PUMPS. Fits all Ford 260,289,302,5.0,Boss 302 engines. Each pump is disassembled in groups of ten for production purposes. All passages have casting flash removed, corners radiused and polished to Increase Flow. The Housings & Gears are then Deburred by a vibratory polisher to Reduce Wear and Cavitation. The Gears are the prepared and sprayed with TECH-LINE moly-coating to Reduce Friction or HP Loss. Three Critical Clearances are checked on reassembly;(1) Gear to Housing, (2) Mesh or Backlash, (3) Gear to Cover-Plate. With Ten gear sets to choose from , One pair with correct clearances will be installed. The relief- valve is De-burred with emmory cloth to insure smooth operation ,cleaned and is re-installed with the existing spring and new hardware. Each cover plate is also Vibratory Polished, cleaned and fastened with safety-wired aircraft bolts. The 302, 5.0 race pump features additional use of a 460 style center gear and cover plate which provides support at both ends of the gear for extra strength for high RPM applications. Another feature over the M-68HV is that the race pump features a threaded valve plug to prevent the plug from coming out. This also makes removing the valve and spring for pressure changes or inspection very simple. All pumps are bench tested. Buy with confidence