Speedmaster 4.280" Bore Piston Oil Ring Rail Spacer Support 0.030" Thick Set of 8 PCE308.1004

The Speedmaster 4.280" Bore Piston Oil Ring Rail Spacer Support is a precision engine component designed for high-performance engine rebuilds and restorations. This set of 8 spacers features a 0.030" thickness and is engineered to support oil ring rail positioning during piston assembly, ensuring proper ring seating and oil control within the combustion chamber.

These piston oil ring spacers are essential for maintaining optimal ring gap and radial clearance, critical factors in engine performance and longevity. The 4.280" bore specification makes this set compatible with engines requiring this exact piston diameter. Manufactured by Speedmaster, a trusted supplier of engine rebuild components, these spacers are ideal for engine shops, performance rebuilders, and serious automotive enthusiasts undertaking complete engine overhauls or custom builds.

Key Features & Benefits

• Precision 4.280" Bore: Engineered for exact fit in piston assemblies with 4.280" bore specification.
• 0.030" Thickness: Precisely manufactured spacer thickness ensures proper oil ring rail support and positioning.
• Set of 8 Pieces: Complete set provides sufficient spacers for a full engine rebuild application.
• Piston Ring Component: Critical wear part for engine assembly and ring seal integrity.
• Speedmaster Brand: Trusted manufacturer of engine rebuild and performance parts.

Specifications

Ideal Applications

• Complete engine rebuilds and overhauls
• Performance engine assembly and customization
• Engine restoration and repair for compatible bore sizes
• Piston ring assembly and preparation