The Jaguar 240 and 340
Years 1967-69 (240), 1967-68 (340)
See Also Jaguar MK II
Jaguar 420
Timeline for the Jaguar models (coming soon)
Notes These cars were really the same as the previous MK II 2.4 and 3.4 models. By the 1967 model year, Jaguar were trying to rationalize their range of cars, and the MK II was coming to the end of its life, and had already been "cheapened" earlier in 1966, in the sense that the previously standard leather upholstery and integrated fog/spot lights had been made optional. The 240/340 were the last update of the MKII. The most obvious external feature was the adoption of a slimmer, single chrome bumper bar front and rear, similar to that on the contemporary Jaguar "S" type models. Out of sight the straight port cylinder head, as fitted to the E-Type was adopted, and on the 2.4 model, twin SU carburettors were fitted, instead of the previous solex carburettor. This gave the 2.4 a useful power increase, and the 3.4 also benefitted from the new cylinder head. Even though its quoted power did not change, the top speed figure increased.  The 3.8 model was dropped, but the 3.8 engine was available in the 340 to special factory order. It is believed that a total of 9 340s were delivered with this engine, and special 340/3-8 badges. The main reason for dropping the 3.8 engine as a standard model appears to have been to lessen competion with Jaguars own 3.8S and 420 models. By this time Jaguar was trying to rationalize its range of cars as the launch of the XJ6 in 1968 approached. The XJ6 was to herald in an age of "one car fits all" instead of the multiplicity of models which characterized the 1960's.

An interesting thread in the Jag-Lovers Sedan section recently discussed the fairly well documented fact that some late model MK II cars (with Ambla upholstery) which were in dealerships in the USA when the 240/340's were announced were given 340 badges by the dealers to help sales. These cars would be distinguishable from real 340's by their bigger bumpers, and by their body and engine number series
Description 4 door sedan (saloon)
Colors See the compact sedan colors page
Engines
Model Engine Bore/Stroke Power
240 2483cc 6 cyl twin overhead camshaft 83 x 76.5 mm 133 bhp @ 5550 rpm
340 3442cc 6 cyl twin overhead camshaft 83 x 106 mm 210 bhp @ 5500 rpm
Carburetors
240 Twin SU HS6
340 Twin SU HD6
All engines are versions of the Jaguar XK type DOHC inline 6
Brakes 4 wheel discs
Production

(Various sources differ, slightly)
240 Right hand drive 3716   
240 Left hand drive 730 240 Total - 4446
340 Right hand drive 2265  
340 Left hand drive 535 340 Total - 2800

All models - 7246
Weight
240 2980 pounds
340 3360 pounds
Length 14 feet 11 inches
Height 4 feet 9 1/2 inches 
Width 5 feet 6 1/2 inches 
Top speed 106/124
Wheelbase 107.375 inches
Transmission 4-speed manual. Overdrive optional. Also available, Borg Warner 3 speed automatic.
Suspension
Front Independent. Coil springs, wishbones and anti-roll bar
Rear Live axle, radius arms, Panhard rod, half elliptic leaf springs.
Chassis Numbers
Additional codes with number
DN suffix means car is fitted with overdrive
BW suffix means car is fitted with automatic gearbox
P prefix  means car is fitted with power steering
240 1J1001-1J4716 (RHD models)
1J30001-1J30730 (LHD models)
340 1J50001-1J52265 (RHD)
1J80001-1J80535 (LHD)
Engine Numbers See the compact sedans engine number page
Standard Equipment Ambla upholstery, spot and fog lights now optional
Options Automatic transmission, overdrive, wire wheels (stove enamel or chrome plated), leather seats, fog/spot lights, various radios, heated rear window, power steering (340 only). Special paint colors were still available