4.330" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Speedmasterª EFI systems give you

Speedmasterª EFI systems give you everything you need to add powerful and efficient fuel injection to your vehicle

Store and protect your differentials the easy way with our Speedmaster horizontal differential storage cases

Tthese Speedmaster aluminum water pump pulleys

Speedmaster aluminum valve covers feature a classic raised

Speedmaster 9 Keyway Double Row Timing Chain Kits are CNC Machined from billet

4.330" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Speedmasterª EFI systems give youThese 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.