Speedmaster PCE308.1012 4.560" Bore Piston Oil Ring Rail Spacer Support 0.030" Thick Set of 8

The Speedmaster PCE308.1012 Piston Oil Ring Rail Spacer Supports are precision-made components designed for engines with a 4.560-inch bore diameter. At 0.030 inches thick, these spacers properly position and support the oil ring rails within the ring groove, helping maintain consistent oil control and ring stability under demanding engine conditions.

This set includes 8 spacer supports, providing enough components for a complete multi-cylinder engine build or rebuild. Engineered for builders who require exact tolerances in their ring packages, these Speedmaster spacers are a reliable addition to any performance or replacement engine assembly featuring a 4.560-inch bore.