Speed Pro Piston Rings - 4.020 in Bore - Drop In - 1/16 x 1/16 x 3/16 in Thick - Standard Tension H77603FXL Body - Carbon Steel protective

Body - Carbon Steel protective coated for corrosion resistance

1976-90 Impala

Detailed installation instructions are included

179 in Long

Speed Pro Piston Rings - 4.020 in Bore - Drop In - 1/16 x 1/16 x 3/16 in Thick - Standard Tension H77603FXL Body - Carbon Steel protectiveSpeed Pro designs and engineers pistons to meet the most demanding street performance and racing conditions. In combination, we draw upon more than 100 years of Speed Pro engine mastery to enhance the piston ring and its seal. Our Speed Pro brand is recognized for being a winner in every form of racing, and is the proven horsepower leader in oval track and drag racing. Hell Fire Rings: Speed Pro Hell Fire rings, manufactured from a specially hardened