Speed Pro Speed Pro Piston Hypereutectic 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.9 cc R030015XXL Bearings / Hardware / Seal

Bearings / Hardware / Seal / Plate / Rotor Adapter / Studs Included

Panhard bars and upper links can now be quickly adjusted with a wrench

Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears

Will work on all Cast Aluminum GM HEI distributors

Speed Pro Speed Pro Piston Hypereutectic 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.9 cc R030015XXL Bearings / Hardware / SealProduct Description: Piston Speed Pro Hypereutectic 4. 030 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 6. 90 cc Coated Skirt 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