Proform Adjustable Piston Ring Compressor 4" - 4.090" - Blue Threaded Insert Tool Kit This also allows you to

This also allows you to make instant center changes for race applications

especially when using performance tires

Coil Springs / Hardware / Shocks

Features:Dual-crimp spark plug terminals

Proform Adjustable Piston Ring Compressor 4" - 4.090" - Blue Threaded Insert Tool Kit This also allows you toPutting the connecting rod through first, simply place the piston (with rings) into the tapered end of the ring compressor. Tighten the compressor snugly around the base of the piston. Then lay the compressor flat on the engine cylinder bore. NOTE: Image shows #PFM66766 and is for reference only. PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a