Total Seal Classic Race Piston Rings - 4.600 in Bore - File Fit - 8-Cylinder COR21245 1979-1981 GMC K1500Fits all GM

1979-1981 GMC K1500Fits all GM TH350 and TH250 automatic transmissions

The adjustable droop sop allows user to dial in front end rise during launch

safe for catalytic converters

Vehicle Applications: Chevrolet C1500 1999-1988

Total Seal Classic Race Piston Rings - 4.600 in Bore - File Fit - 8-Cylinder COR21245 1979-1981 GMC K1500Fits all GMProduct Description: Piston Rings Classic Race 4. 600 in Bore File Fit 0. 043 x 0. 043 in x 3. 0 mm Thick Low Tension Ductile Iron 8 Cylinder 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