Rings marked Dodge and Plymouth, 1954/55 V8, 241, 3 7/16 bore, STD size. Complete for 8 cylinders.
I can add more photos and details, call or email. Phone is on ebay ok to call 2174148341.
Measured with NO gap, 3.463 inch.
Top ring, thickness, 0.075; 2nd ring, 0.075; oil control ring assembly, 0.185. Three rings per piston; rings for 8 pistons.