Jaguar XJ6 Engines by Year

The Series I–III XJ6 sedans used the XK six.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

XJ6 Series I (1969–1973): 1969 · 1970 · 1971 · 1972 · 1973

XJ6 Series II (1974–1979): 1974 · 1975 · 1976 · 1977 · 1978 · 1979

XJ6 Series III (1980–1987): 1980 · 1982 · 1984 · 1985 · 1986 · 1987

XJ6 Series I (1969–1973)

1969 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 4.2

1970 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 4.2

1971 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 4.2

1972 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 4.2

1973 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 4.2

XJ6 Series II (1974–1979)

1974 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 / XJ6L, XJ6C coupe (1975-78)

1975 XJ6 engines

Engine	Rated	Offered in
259 inline-six XK 4.2	—	XJ6 / XJ6L, XJ6C coupe (1975-78)

1976 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2	—	XJ6 / XJ6L, XJ6C coupe (1975-78)

1977 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2	—	XJ6 / XJ6L, XJ6C coupe (1975-78)

1978 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2	—	XJ6 / XJ6L, XJ6C coupe (1975-78)

1979 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2	—	XJ6 / XJ6L, XJ6C coupe (1975-78)

XJ6 Series III (1980–1987)

1980 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2 EFI	—	XJ6, Vanden Plas

1982 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2 EFI	—	XJ6, Vanden Plas

1984 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2 EFI	—	XJ6, Vanden Plas

1985 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2 EFI	—	XJ6, Vanden Plas

1986 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2 EFI	—	XJ6, Vanden Plas

1987 XJ6 engines

Engine	Rated	Offered in
4.24L / 259 inline-six XK 4.2 EFI	—	XJ6, Vanden Plas

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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