Speed Pro Premium Piston Rings 4.120" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 1950595 1957-1957 Oldsmobile

1957-1957 Oldsmobile

Your S197 needs to perform

1965-1967 Mercury Caliente

or H60 headsets

Speed Pro Premium Piston Rings 4.120" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 1950595 1957-1957 OldsmobileProduct Description: Piston Rings Performance 4. 120 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