Sifton peak seal set for linkert carburetor intake manifolds, replaces the stock brass sealing rings, with an exact fit for peak performance.
Sold as a pair. *NOTE: Clean the threads on the nuts and intake, that the mating surface of the intake is clean and flat, and that the manifold lines up correctly with the intakes. Pay special attention to any deep grooves or scratches in these surfaces. Chrome manifolds may have been buffed out of round and have surface cracks that prevent sealing. After several heat cycles, retighten and again leak test the nuts to take up any settling that may have occured. *NOTE: Old HD #1118-40.