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They accurately measure camshaft centerline
Unlike our competitors that only use 3 or 4 pinion gears
Our single plane big block manifold is now available with Dominator carburetor flange
These scoops give you that classic Hilborn-style look with a polished aluminum body
pulling trucks
4.540" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 They accurately measure camshaft centerlineThese Speedmaster piston oil ring spacers are used in applications where the piston oil ring groove intersects the pinhole. Speedmaster piston oil ring spacers are manufactured from spring steel and install against the bottom sill of the oil ring groove. Available in different bore diameters to suit your specific engine's needs, the Speedmaster piston oil ring spacers will keep your pistons working smoothly throughout the entire operating range.
