Jaguar XK engine
| Jaguar XK | |
|---|---|
 | |
| Overview | |
| Manufacturer | Jaguar Cars |
| Production | 1949–1994 |
| Chronology | |
| Successor | Jaguar AJ6 |
The famed Jaguar XK engine was introduced in 1949 and produced until 1994. It was a DOHC inline-6 engine. The 4.2 variant was also used in some military vehicles with very few modifications.
3.4
The first use was in the 1949 Jaguar XK120, where it was billed as the 3 1/2 litre. This was a 3.4 L (3442 cc) version with an 83 mm bore and 106 mm stroke. It had an iron block and an aluminum cylinder head which delivered Template:Auto bhp at a compression ratio of 8:1, rising to Template:Auto bhp with the C-Type head as raced at Le Mans. A 4-cylinder XK variant was never produced.
This engine was used in the following cars:
- Jaguar XK120
- Jaguar XK140
- Jaguar XK150
- Jaguar Mark VII
- Jaguar Mark VIII
- Jaguar Mark 1
- Jaguar Mark 2
- Jaguar 340
- Jaguar S-Type (original)
- Jaguar C-Type
- Jaguar XJ6
3.8
The larger 3.8 L version was released in 1958. It was fitted with sleeves and bored to 87 mm and produced up to Template:Auto hp.
This engine was used in the following cars:
- Jaguar XK150
- Jaguar Mark 2
- Jaguar Mark IX
- Jaguar Mark X
- Jaguar E-Type
- Jaguar S-Type (original)
- Jaguar XKSS
- Jaguar D-Type
- Panther J72
4.2
The 4.2 litre version was officially released in 1965, though racers had been boring the 3.8 out all the way to 4.2 litres for years. The block was an all new Siamese sleeves design. The official bore was 93 mm, and the engine produced from 170 hp (DIN) with Zenith-Strongberg carburettors, to Template:Auto hp hp (claimed) with the triple SU HD8 carburettors.
This engine was used in the following cars:
- Jaguar Mark X
- Jaguar 420
- Jaguar 420G
- Jaguar E-Type
- Jaguar XJ6
- Daimler Sovereign
- Daimler DS420 Limousine
- Panther J72
- Panther De Ville
It was also used in the following military vehicles:
- FV101 Scorpion, a British CVR(T)
- FV107 Scimitar, a British Armoured car.
The 1987 Jaguar XJ6 was the last Jaguar car fitted with the XK6 engine. In 1992 the last Daimler DS420 Limousine was produced. Like all other DS420 limousines, it was equipped with a 4.2L XK6 engine.
The amount of time the 4.2 XK engine has remained in production means it has the rare accolade of having been in service in cars spanning 6 consecutive decades.
2.4
The 2.4 was a de-stroked (to 76.5 mm) version of the 3.4, and produced Template:Auto hp. It featured Solex downdraft carburettors in the original Mark I and Mark II saloons.
This engine was used in the following cars:
2.8
A 2.8 version was introduced for the entry-level XJ6 models in 1968 and remained available until replaced by the 3.4 in 1975.
This engine was used in the following cars: