Tapered Ring Compressor Sleeves

• Machined from Wiseco sleeve forgings to offer the same toughness as Wiseco's forged pistons.
• Hard anodized and Teflon coated for low friction and prolonged wear resistance.
• Sleeves have a smooth radius that tapers down to the specific bore size.
• Compresses the piston rings smoothly and evenly.
• Greatly reduces the difficulty with installing thin high-performance oil rings.