Hastings 2.972"/75.50 mm Standard Bore, 8-Cylinder Ring Set with 1.50 mm Top Ring, 1.50 mm Second Ring, and a First Oil Ring is 4.00 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from grey iron with chrome ring surface treatment and a second ring manufactured from grey iron with a 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
1963 Ford 300
1956-1957 Ford Club
1956-1957 Ford Country Sedan
1962-1965 Ford Country Sedan
1956-1957 Ford Country Squire
1962-1965 Ford Country Squire
1957 Ford Custom
1964-1965 Ford Custom
1956 Ford Customline
1957 Ford Del Rio Wagon
1956-1957 Ford Fairlane
1962-1964 Ford Fairlane
1962-1965 Ford Falcon
1963-1964 Ford Galaxie
1956 Ford Mainline
1964-1965 Ford Mustang
1956 Ford Park Lane Wagon
1956-1957 Ford Ranch Wagon
1962-1965 Ford Ranch Wagon
1956-1957 Ford Skyliner
1963-1964 Ford Sprint
1956-1957 Ford Sunliner
1956-1957 Ford Thunderbird
1956-1957 Ford Victoria
1964-1965 Mercury Caliente
1957-1960 Mercury Colony Park
1962-1965 Mercury Comet
1957-1960 Mercury Commuter
1959-1960 Mercury Country Cruiser
1963 Mercury Country Cruiser
1956 Mercury Custom
1964-1965 Mercury Cyclone
1956-1958 Mercury Medalist
1962-1963 Mercury Meteor
1956-1960 Mercury Montclair
1956-1960 Mercury Monterey
1958-1960 Mercury Park Lane
1962-1965 Mercury Villager
1957-1959 Mercury Voyager
Attributes
1st Oil Groove 3/16
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 3/32
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C571
California Proposition 65 No
Engborein 3.800
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 5/64
GTIN 00075538027393