Hastings 3.75" Standard Bore, 8-Cylinder Ring Set with 5/64" Top Ring, 5/64" Second Ring and a First Oil Ring is 3/16".
This Hastings 8-Cylinder Ring Set has a top ring manufactured from ductile iron with plasma moly 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
1966-1974 American Motors Ambassador
1966-1968 American Motors American
1968-1969 American Motors AMX
1978-1979 American Motors AMX
1963-1966 American Motors Classic
1978-1979 American Motors Concord
1972-1976 American Motors Gremlin
1970-1977 American Motors Hornet
1968-1974 American Motors Javelin
1965-1967 American Motors Marlin
1971-1977 American Motors Matador
1978-1979 American Motors Pacer
1969 American Motors Rambler
1966-1968 American Motors Rebel
1970 American Motors Rebel
1966 American Motors Rogue
1979 American Motors Spirit
1964 Buick Estate Wagon
1967 Buick Gran Sport
1964-1967 Buick LeSabre
1964-1967 Buick Skylark
1964-1967 Buick Special
1964-1967 Buick Sportwagon
1955-1957 Chevrolet Bel Air
1955-1956 Chevrolet Corvette
1957 Chevrolet Del Ray
1955-1957 Chevrolet One-Fifty Series
1955-1957 Chevrolet Sedan Delivery
1955-1957 Chevrolet Truck
1955-1957 Chevrolet Two-Ten Series
1959-1960 Edsel Ranger
1959-1960 Edsel Villager
1955-1959 Ford Club
1955-1962 Ford Country Sedan
1955-1962 Ford Country Squire
1958-1960 Ford Courier Sedan Delivery
1957 Ford Custom
1958-1960 Ford Custom 300
1955-1956 Ford Customline
1957-1958 Ford Del Rio Wagon
1958-1964 Ford F-100
1958-1964 Ford F-250
1958-1964 Ford F-350
1955-1961 Ford Fairlane
1959-1962 Ford Galaxie
1955-1956 Ford Mainline
1958-1964 Ford P-350
1956 Ford Park Lane Wagon
1955-1962 Ford Ranch Wagon
1958-1959 Ford Ranchero
1955-1959 Ford Skyliner
1960 Ford Starliner
1955-1960 Ford Sunliner
1955-1958 Ford Thunderbird
1955-1960 Ford Victoria
1955 GMC Truck
1971-1981 Jeep CJ5
1971-1975 Jeep CJ6
1976-1981 Jeep CJ7
1972-1973 Jeep Commando
1971-1972 Jeep J-100
1971-1972 Jeep J-2500
1971-1972 Jeep J-2600
1971-1972 Jeep J-4500
1971-1972 Jeep J-4600
1971-1972 Jeep J-4700
1971-1972 Jeep J-4800
1972 Jeep Wagoneer
1961-1962 Mercury Colony Park
1961-1962 Mercury Commuter
1955 Mercury Custom
1961-1962 Mercury Meteor
1955 Mercury Montclair
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 2M568
California Proposition 65 No
Engborein 3.75
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 PLASMA MOLY
GTIN 00075538027119