4.580" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Precision CNC-machined threads to ensure

Precision CNC-machined threads to ensure optimum seat pressure

Dress up your oil system with a oil pan from PCE

050 effectively decreasing spring pressure

They are manufactured from cast aluminum and are offered with breather holes or without any holes

4.580" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Precision CNC-machined threads to ensureThese 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.