OEM Spark Plug Reference

144 cubic inch (inline six-cylinder)
1960 – 1961: Champion F-14Y
Spark Plug Gap: .035 in.

1962 – 1964: Auto-Lite BF82
Spark Plug Gap: .035 in.

170 cubic inch (inline six-cylinder)
1960 – 1961: Champion F-14Y
Spark Plug Gap: .035 in.

1962 – 1970: Auto-Lite BF82
Spark Plug Gap: .035 in.

200 cubic inch (inline six-cylinder)
1964 – 1968: Auto-Lite BF82
Spark Plug Gap: .035 in.

221 cubic inch
1962 – 1963: Auto-Lite BF92
Spark Plug Gap: .035 in.

223 cubic inch (inline six-cylinder)
1952 – 1954: Champion H-18Y
Spark Plug Gap: .035 in.

1955 – 1959: Champion 870
Spark Plug Gap: .035 in.

1960 -1961: Champion 860
Spark Plug Gap: .035 in.

239 cubic inch
1954: Champion H-18Y
Spark Plug Gap: .035 in.

240 cubic inch (inline six-cylinder)
1965: Auto-Lite BTF6
Spark Plug Gap: .035 in.