Speed Pro Speed Pro Piston Hypereutectic 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.9 cc Heim Joint Hourglass Spacer this mic is a must-have

this mic is a must-have for any valvetrain project

1975-1985 Chevrolet G20

No Valving

bends and conforms to almost any shape

Speed Pro Speed Pro Piston Hypereutectic 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 6.9 cc Heim Joint Hourglass Spacer this mic is a must-haveProduct Description: Piston Speed Pro Hypereutectic 4. 040 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