Speedmaster PCE308.1017 3.900" LS Piston Oil Ring Rail Spacer Support 0.040" Thick

The Speedmaster PCE308.1017 piston oil ring rail spacer support is engineered for LS engine applications where the piston oil ring groove intersects the wrist pinhole. This critical component prevents oil ring distortion and maintains proper ring seal throughout the engine's operating range.

Key Specifications:

• Bore diameter: 3.900 inches
• Thickness: 0.040 inches
• Material: Spring steel construction for durability and consistent tension
• Application: LS piston oil ring groove support

Features and Benefits:

• Installs against the bottom sill of the oil ring groove to provide structural support
• Prevents oil ring collapse where groove intersects the pinhole
• Spring steel material maintains shape under heat and pressure
• Ensures proper oil control and ring seal integrity
• Essential for high-performance LS builds with larger bore diameters

This precision-manufactured spacer is specifically sized for 3.900" bore applications, providing the correct support to keep your piston oil control rings functioning properly and preventing excessive oil consumption.