4.000" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Superior engineering

Superior engineering

Additionally

Speedmaster LS-series cylinder heads are rapidly expanding

Also stock replacement/street legal for 302

Our EFI systems provide excellent throttle response throughout the RPM range along with smooth engine operation

4.000" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Superior engineeringThese 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.