Total Seal Street Piston Rings - 3.866 in Bore - Ford Powerstroke Coil-Over Spring 8 Pieces Per Package

8 Pieces Per Package

LED Preview Window Integrated into the Control Box

A 13/32" Drill set is required for installation

Works with EGR for 1972-78 400cid w/ OEM 4-bbl

Each kit includes everything needed to do a complete installation on an early '67 Mustang with the original column

Total Seal Street Piston Rings - 3.866 in Bore - Ford Powerstroke Coil-Over Spring 8 Pieces Per PackageProduct Description: Piston Rings Street 3. 866 in Bore 2. 5 mm x 2. 0 mm in x 3. 0 mm Thick Standard Tension Steel Ford Powerstroke Total Seal's patented Gapless Piston rings provide increased performance through unmatched sealing of the cylinder and combustion gasses in the combustion chamber. Increased horsepower and torque along with longer engine life are just a couple of the reasons why Total Seal's Gapless A Piston rings are the best rings