Up for sale is a FULL SET of CAST IRON Piston Rings .020 OVERSIZE for 6-cylinder engines with pistons that have 4 ring grooves. Quality piston rings MADE IN THE USA many years ago by one of the major aftermarket companies of the era.  Easy to install and will provide maximum efficiency over the life of the engine.  

These will fit the following automobiles:

1935-1940 Plymouth with 201ci 6-cylinder engine

Standard Diameter was 3.125 inches

These .020 oversize rings fit bores of 3.145 inches

Compression Rings - 12 pcs 1/8 inch

Oil Rings - 12 pcs 5/32 inch