Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 8.0 cc - Coated Skirt 10208CP Proof O Performance Tag

Proof O Performance Tag

Fits Most GM Applications

12-1/4-IN/304

Fitting Side Seals on 37 degrees Flare and O-ring

painted 409S outer shell

Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 8.0 cc - Coated Skirt 10208CP Proof O Performance TagProduct Description: Piston Hypereutectic 4. 040 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 8. 00 cc Coated Skirt Small Block Ford 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