The Speedmaster PCE308.1016 Piston Oil Ring Rail Spacer Supports are designed for engines with a 4.125-inch bore diameter. Each spacer measures 0.030 inches thick and provides proper support and alignment for oil ring rails, helping maintain consistent ring tension and promoting effective oil control during engine operation. This set includes 8 pieces, supplying enough components for a complete engine build or rebuild.
Whether you are assembling a performance engine or refreshing an existing setup, these oil ring rail spacers are a reliable choice for ensuring your piston rings seat and function correctly. Verify your engine's bore diameter is 4.125 inches and that 0.030-inch thickness spacers match your ring package specifications before ordering.
