Hastings 4.125" 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 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
1957-1958 Buick Century
1959-1961 Buick Estate Wagon
1959-1961 Buick LeSabre
1958 Buick Limited
1957-1958 Buick Roadmaster
1957-1958 Buick Special
1957-1958 Buick Super
1958-1961 Chevrolet Bel Air
1970-1975 Chevrolet Bel Air
1958-1961 Chevrolet Biscayne
1970-1972 Chevrolet Biscayne
1959-1961 Chevrolet Brookwood
1970-1972 Chevrolet Brookwood
1976-1980 Chevrolet C10
1960 Chevrolet C10 Pickup
1970-1972 Chevrolet C10 Pickup
1970-1972 Chevrolet C10 Suburban
1976-1980 Chevrolet C20
1960 Chevrolet C20 Pickup
1970-1972 Chevrolet C20 Pickup
1970-1972 Chevrolet C20 Suburban
1976-1980 Chevrolet C20 Suburban
1976-1978 Chevrolet C30
1960 Chevrolet C30 Pickup
1970-1972 Chevrolet C30 Pickup
1970-1972 Chevrolet Camaro
1970-1976 Chevrolet Caprice
1970-1973 Chevrolet Chevelle
1958 Chevrolet Del Ray
1959-1960 Chevrolet El Camino
1971-1972 Chevrolet El Camino
1975-1976 Chevrolet El Camino
1970 Chevrolet Estate
1976 Chevrolet G10
1975-1980 Chevrolet G20
1975-1980 Chevrolet G30
1958-1961 Chevrolet Impala
1970-1976 Chevrolet Impala
1975-1980 Chevrolet K10
1960 Chevrolet K10 Pickup
1970-1972 Chevrolet K10 Pickup
1970-1972 Chevrolet K10 Suburban
1975-1979 Chevrolet K10 Suburban
1975-1980 Chevrolet K20
1960 Chevrolet K20 Pickup
1970-1972 Chevrolet K20 Pickup
1970-1972 Chevrolet K20 Suburban
1975-1980 Chevrolet K20 Suburban
1977-1980 Chevrolet K30
1970-1972 Chevrolet K30 Pickup
1975-1979 Chevrolet K5 Blazer
1959-1961 Chevrolet Kingswood
1970-1972 Chevrolet Kingswood
1973-1976 Chevrolet Laguna
1973-1976 Chevrolet Malibu
1970-1976 Chevrolet Monte Carlo
1958-1961 Chevrolet Nomad
1970-1972 Chevrolet Nova
1977 Chevrolet P10
1960 Chevrolet P20 Series
1976 Chevrolet P30
1960 Chevrolet P30 Series
1959-1961 Chevrolet Parkwood
1958 Chevrolet Sedan Delivery
1960 Chevrolet Suburban
1970-1972 Chevrolet Townsman
1958 Chevrolet Truck
1958 Chevrolet Yeoman
1961-1964 Chrysler Newport
1961-1964 Chrysler Town & Country
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 661
California Proposition 65 No
Engborein 4.125
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 00075538031758