Speed Pro Premium Piston Rings 3.950" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly HASZ20SM Formulated to pass tire “sniffer”

Formulated to pass tire “sniffer” tests

Silverado 3500 HD 2017-2011

Wilwood / Chevy Corvette 1988-14

Factory length for '55-'79 Pontiac 350-455

Jeep LJ / MJ / TJ / XJ / ZJ 1984-2006

Speed Pro Premium Piston Rings 3.950" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly HASZ20SM Formulated to pass tire “sniffer”Product Description: Piston Rings Performance 3. 950 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Moly 8 Cylinder 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 racers can