Speed Pro Economy Piston Rings 3.905" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron RS003C0808 That's why AMP Research invented

That's why AMP Research invented the patented PowerStep™

Virtually eliminates heat soak

Can be used in naturally aspirated and turbo diesel engines and is also safe for engines fitted with exhaust after-treatment devices

1994-1996 Cadillac DeVille

LS3 Mongoose

Speed Pro Economy Piston Rings 3.905" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron RS003C0808 That's why AMP Research inventedProduct Description: Piston Rings Economy 3. 905 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Cast Iron Natural 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