Speed Pro Hypereutectic Piston 4.290" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 2.0 cc - Coated Skirt YA0800ABP this is called rebound or

this is called rebound or extension

plus feature a vacuum advance

Dual Bushing Style

(2) Micro Sprint Split Coned Axle Spacer Kit

5 or 6-point harness sets

Speed Pro Hypereutectic Piston 4.290" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 2.0 cc - Coated Skirt YA0800ABP this is called rebound orProduct Description: Piston Hypereutectic 4. 290 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 2. 00 cc Coated Skirt Big 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