4.03 inch Bore Summit Racing Piston Ring Compressor

4.03 inch Bore Summit Racing Piston Ring Compressor | Summit Racing 904030

Summit Racing SME-904030: Ring Compressor, Aluminum, Black Anodized, 4.030 in. Bore, Each – Make piston installation painless with these Summit Racing non-adjustable piston ring compressors. The aluminum ring compressors are bore-specific and have a tapered inner diameter. Just install the rings on the piston and slide the piston and rod assembly down into the bore. The taper gradually compresses the rings right up until they go into the bore. They are available to fit many bore sizes, and have a black anodized finish.