Speed Pro Economy Piston Rings - 4.000 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Cast - Phosphate - 8-Cylinder E377X MT-ANT-BRONCO-AL Automatically senses low air spring

Automatically senses low air spring pressure and immediately activates to maintain a safe pressure level

high capacity HP bowls which feature 20% more fuel capacity to eliminate starvation

These can be run shaft up or shaft down and a snap ring groove has also been added to allow the use of a coil-over kit

1964-1972 Chevrolet Chevelle

to prevent premature stretch and failure

Speed Pro Economy Piston Rings - 4.000 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Cast - Phosphate - 8-Cylinder E377X MT-ANT-BRONCO-AL Automatically senses low air springProduct Description: Piston Rings Economy 4. 000 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