Speed Pro Economy Piston Rings 4.290" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron Master Cylinder 1965-1974 Buick Riviera

1965-1974 Buick Riviera

GM LS-Series to Ford Small Block

775 in Head

Manufactured from multiple durometer polyurethanes

Speed Pro Economy Piston Rings 4.290" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron Master Cylinder 1965-1974 Buick RivieraProduct Description: Piston Rings Economy 4. 290 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Cast Iron Phosphate 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