Speed Pro Claimer Series Piston Rings - 4.030 in Bore - Drop In - 1/16 x 1/16 x 3/16 in Thick - Standard Tension BR10123 Deep - Zinc Iridize

Deep - Zinc Iridize

1986-1989 Isuzu NPR

1960-1967 Cadillac DeVille

13/16 x 16 in Thread

1968-1969 Mercury Marquis

Speed Pro Claimer Series Piston Rings - 4.030 in Bore - Drop In - 1/16 x 1/16 x 3/16 in Thick - Standard Tension BR10123 Deep - Zinc IridizeSpeed 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(R) 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(R) Rings: Speed Pro Hell Fire rings, manufactured from a specially