Wiseco Pistons RCS08650 Ring Compressor Sleeve - 86.5mm

The Wiseco RCS08650 ring compressor sleeve is a precision CNC-machined tool designed for professional engine builders and serious enthusiasts. Manufactured from 6061-T6 billet aluminum tube material, this 86.5mm ring compressor features a true radius design that provides superior performance compared to conventional tapered ring compressors.

Key Features:

• Precision CNC machined from 6061-T6 billet aluminum for exceptional durability
• True radius bore design ensures smooth, even compression of piston rings
• Relief cut for wire O-rings on bottom edge for secure positioning
• Type 3 hard anodized finish for long-lasting wear resistance
• Bore size prominently engraved in large 3/4" numbers for quick identification
• 86.5mm bore diameter

The true radius design of Wiseco ring compressors eliminates the guesswork and potential ring damage associated with tapered compressors. The precisely machined bore diameter matches your cylinder exactly, allowing piston rings to compress evenly as the piston enters the bore. The relief cut accommodates wire-type O-rings, and the durable Type 3 anodizing ensures this tool will serve you for years of engine builds.