Adjustable Piston Ring Compressor Tool Unit has a 4.205-4.310 Inch Diameter Bore Range Red Anodized Aluminum Proform proform Easily determine the dimensions of

Easily determine the dimensions of your rod and cylinder bores with our Professional Dial Bore Gauge

This fully adjustable tool fits easily onto your rocker arm for pressure checks and will measure pressure up to 600 lbs

Fits 1988-1995 GM V6 Engines With HEI Distributor Using Internal Coil

Patented Adjustable Adapters Fit Bores 2

improves engine performance

Adjustable Piston Ring Compressor Tool Unit has a 4.205-4.310 Inch Diameter Bore Range Red Anodized Aluminum Proform proform Easily determine the dimensions ofPutting 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. Sold individually. Product Details: Adjustable Piston Ring Compressor Tool Unit has a 4. 250 Inch to 4. 310 Inch Bore Range Red Anodized Finish Made from High Quality Aluminum Material Sold As Each