Sealed Power E-144X Engine Piston Rings STD For 1940-1963 GMC 256 270-L6

SEALED POWER E-144X. Condition: New - Other.
Interchange: 4912, 2C5243, 5066KX
G.M.C. Truck., 256, 270 Engs., (6 Cyl. Set) Interchanges with 5066X. STANDARD SIZE. 3/32 Top Groove, 3/32 2nd Groove, 3/32n 3rd groove, 3/16 4th groove 3-25/32 Bore