Speed Pro Cast Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves Small Block Chevy - Each X3-696RS-M1-HK Direct Drive Pump is for

Direct Drive Pump is for use on carbureted applications and has a 3/8" hex shaft for easy installation

They dimpled their tubes at the port to make more room for the header bolts and they parallel ground their flanges to assure a tight seal

High-Density Materials

Fuel Pressure / Oil Pressure / Water Temperature / Recall Tachometer

Speed Pro Cast Piston 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves Small Block Chevy - Each X3-696RS-M1-HK Direct Drive Pump is forProduct Description: Piston Cast 4. 030 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 3. 27 cc Small Block Chevy Set of 8 From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can trust. By