Speed Pro | Moly Piston Ring Set These ring sets feature a moly top ring, with a cast second and the famous SS-50 oil ring. SS-50 oil rings are designed to instantly seat on start-up, conforming to worn or out-of-round cylinders. Perfect for most moderate performance applications.
Part Type: Piston Rings Set Application: Chevrolet Big Block & Chrysler Big Block Bore Size (in): 4.250" Bore Size (mm): 107.950mm Piston and Ring Oversize (in): Standard Piston and Ring Oversize (mm): Standard File Fit: No Gapless: No Top Ring Thickness: 5/64" Top Ring Material: Iron Top Ring Facing Material: Moly Second Ring Thickness: 5/64" Second Ring Material: Iron Second Ring Facing Material: Cast Iron Oil Ring Thickness: 3/16" Oil Ring Material: Stainless Steel UPC: 053059130938 Manufacturer: Federal Mogul Manufacturer's Part Number: E-233K Brand: Speed Pro Warranty: Race Application, No warranty expressed or implied Quantity: Sold as Set
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