The Speedmaster PCE308.1018 is a piston oil ring rail spacer support designed for engine bores ranging from 4.000" to 4.060". At 0.030" thick, this spacer provides the precise support needed to properly locate and stabilize oil ring rails within the piston ring groove, helping to maintain consistent oil control and ring seal integrity during engine operation.
Whether you're building a performance street engine or a dedicated racing application, this oil ring rail spacer support is an essential component for ensuring proper ring pack assembly in bores within the specified range. Always verify your exact bore diameter and piston specifications before installation to confirm compatibility with your engine build.
MPNPCE308.1018
UPC840136538431
