Hastings 3.5625" Bore +.060" Over Size, 8-Cylinder Ring Set with 5/64" Top Ring, 5/64" Second Ring and a First Oil Ring is 3/16".
This Hastings Single Cylinder Ring Set has a top ring manufactured from grey iron with phosphate ring surface treatment, a second ring manufactured from grey iron with phosphate ring surface treatment. The 1st oil control ring is manufactured of steel rail/stainless expansion with a chrome rail ring surface treatment.

Application Summary:

Year Make/Model
1955-1956 Dodge Truck
1954 Packard Cavalier
1958 Packard Hawk
1959 Studebaker 4E12
1961 Studebaker 6E12
1962 Studebaker 7E13
1964 Studebaker 8E14
1963 Studebaker 8E7D
1957 Studebaker Commander
1960 Studebaker Hawk
1956 Studebaker Police Car
1958 Studebaker Silver Hawk
Attributes
1st Oil Groove 3/16
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 5/64
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 630S.060
California Proposition 65 No
Engborein 3.5625
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 5/64
Top Ring Surface Treatment PHOSPHATE
GTIN 00075538028000