ARP Ring Compressor 86.5mm

ARP Ring Compressor 86.5mm Precision-built ring compressor designed by ARP for reliable, damage-free piston ring installation on 86.5mm bores. Crafted for professional engine builders and enthusiasts who demand exacting tolerances and consistent results. Size: 86.5mm bore compatibility Durable construction: High-quality steel with a smooth inner surface to prevent ring and piston scoring Secure fit: Uniform compression ensures rings stay square and seated during cylinder entry Easy to use: Simple, fast installation saves time on rebuilds and assembly Wide application: Ideal for performance builds, OEM replacements, and race engines using 86.5mm pistons Whether you're assembling a high-performance motor or performing routine engine work, the ARP Ring Compressor 86.5mm delivers accurate ring control and dependable performance to protect pistons and rings during installation.