Ensure precise and damage-free piston installation with the ARP 80.5mm Piston Ring Compressor. This essential engine building tool is engineered to accurately compress piston rings, allowing for smooth, controlled insertion of the piston into the cylinder bore without causing damage to delicate rings or cylinder walls. Its tapered design guides the piston straight into the bore, making engine assembly more efficient and reliable. Crafted for durability and consistent performance, this ARP ring compressor is a vital component in any professional or enthusiast's toolbox, designed to stand up to repeated use during engine rebuilds and performance upgrades. Precisely sized for 80.5mm cylinder bores Designed to compress piston rings safely and evenly Facilitates smooth, damage-free piston installation Durable construction for long service life Manufacturer Part Number: 901-8050