4.290" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 compact alternative to bulky transmission

compact alternative to bulky transmission coolers

Speedmaster piston rings are designed to stand up to the rigor of racing and high-performance street use while providing a long-lasting life

Speedmaster aluminum valve covers are the perfect fit for your engine

Speedmaster manufactures these master cylinders from quality materials to ensure proper fitment

These retainers are available in a variety of lock angles and sizes to suit your needs

4.290" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 compact alternative to bulky transmissionThese 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.