4.000" - 4.060" Bore Piston Oil Ring Rail Spacer Support (0.020" Thick) these replacement mounting cap assemblies

these replacement mounting cap assemblies from Speedmaster will get your project back on the road

These chrome water necks from Speedmaster add a touch of class to your cooling system

the stock accessories may not run at the same speed as originally designed

making them ideal for withstanding the rigors of any demanding environment

4.000" - 4.060" Bore Piston Oil Ring Rail Spacer Support (0.020" Thick) these replacement mounting cap assembliesThese 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.