Speed Pro Economy Piston Rings 4.030" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron NMO-MT-13 Cleaning Convenience:

Cleaning Convenience:

smaller-than-standard hex head is ideal for tight spaces

Stock Application: 60-66 Imperial

Internal pump passage on metering block equipped with tunable bleed off

090" thick aluminum support is covered with 1/2" of energy absorbing foam and a black velour

Speed Pro Economy Piston Rings 4.030" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron NMO-MT-13 Cleaning Convenience:Product Description: Piston Rings Economy 4. 030 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