Speedmaster 4.000" Bore Piston Oil Ring Rail Spacer Support Set of 8 PCE308.1015

The Speedmaster PCE308.1015 is a precision piston oil ring rail spacer support engineered for engine rebuilds and performance applications. This set of 8 spacers features a 4.000" bore diameter with 0.030" thickness, designed to maintain proper oil ring rail positioning and support within the piston assembly. These critical engine components ensure correct ring tension and oil control during high-performance and racing engine builds.

These piston oil ring rail spacer supports are essential for maintaining engine reliability and oil management in both naturally aspirated and forced-induction applications. The precision manufacturing of Speedmaster components delivers the quality needed for serious engine builders and machine shops. Proper oil ring support translates directly to better ring sealing, reduced blow-by, and improved engine longevity in demanding racing and street performance environments.

Key Features & Benefits

• 4.000" Bore Diameter: Precisely sized for engines with 4.000" bore specifications.
• 0.030" Thickness: Exact thickness specification ensures proper ring rail positioning and support.
• Set of 8 Pieces: Complete set of eight spacer supports for a full piston assembly.
• Precision Manufacturing: Engineered for engine rebuilds and high-performance applications requiring tight tolerances.

Specifications

Ideal Applications

• Engine rebuilds and machine shop applications
• High-performance and racing engine builds
• Naturally aspirated engine assembly
• Forced-induction engine builds