4.250" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Speedmaster high-volume oil pumps give

Speedmaster high-volume oil pumps give you an additional 20 to 25 percent of much-needed oil volume for your performance application

filter element

Made of durable steel

These mounting blocks keep your starter secured and properly adjusted

The gears are precision-machined from the highest quality aluminum silicon bronze alloy for maximum durability

4.250" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Speedmaster high-volume oil pumps giveThese 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.