Speed Pro Speed Pro Piston Hypereutectic 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Coated Skirt Gauge Cup Increased outer hardened layer thickness

Increased outer hardened layer thickness (RC 55-60)

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Speed Pro Speed Pro Piston Hypereutectic 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Coated Skirt Gauge Cup Increased outer hardened layer thicknessProduct Description: Piston Speed Pro Hypereutectic 4. 060 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