The Speedmaster PCE308.1003 Piston Oil Ring Rail Spacer Supports are designed for engines with a 4.250-inch bore diameter. Each spacer measures 0.030 inches thick and provides critical support between oil ring rails, helping to maintain proper oil ring tension and alignment for consistent sealing performance during engine operation.
This set includes 8 spacer supports, making it ideal for complete engine builds or full top-end rebuilds. Whether you are refreshing a high-performance engine or building from the ground up, these ring rail spacers are a straightforward, reliable solution for maintaining proper oil control ring geometry in 4.250-inch bore applications.
MPNPCE308.1003
UPC840136538288
