The Jaguar E-Type (XKE) series 3 5.3 V12

Years 1971-75 See also
E-Type Series 1 3.8
E-Type Series 1 4.2
E-Type Series 2 4.2
Notes The story of the V12 motor will be told elsewhere in this database. Suffice it to say here that Jaguar had developed a V12 in the mid sixties for the XJ-13 racing car of 1965.  However the V12 which powered the Series 3 E- type and the XJ12 was a considerably different engine than that of the XJ-13.  By 1971 the XJ12 was about to appear, and, just as many year ago the XK120 had been a test bed for the XK engine, so the E- Type became an early test application of the new V12 engine.   For the Series 3,  other changes were made to the car.  The hood air intake opening was again increased, and for the first time a grille was fitted.   Larger wheels and tires were used, and the front track increased by some 4 inches.   Wheel arches were increased in size, and fenders flared to cover the larger wheels.   Considerable design changes had to be made to the front subframe to accomodate the larger V12 engine.  During the life span of this model, US crash regulations became more stringent, and, as a result the 1973 and 1974/5 models were fitted with rubber over riders front and rear (2 1/2 mph protection on the 1973, and 5 mph on the 1974/5)

The 2 seater coupe was dropped from the model range, and both remaining models were now built on the extended 104 inch wheelbase.

Interior changes were relatively minor, the most noticable being the replacement of the wood rim steering wheel, with a slightly smaller leather covered wheel.   Steel wheels now became standard with both stove enamel and chrome wire wheels still available as options.

Both models were now available with automatic transmission - the first time this had been available on the roadster model.

Description 2 door sports, available in two body styles
  • Roadster
  • Fixed Head Coupe
  • Fixed Head Coupe 2+2
Model Engine Bore/Stroke Power
E-Type 4.2 Series 1 5343 cc 12 cyl single overhead camshaft 90 x 70 mm 272 bhp @ 5850 rpm
Four Stromberg CDSE, Lucus OPUS Electronic ignition
Engine was the  Jaguar SOHC V12
Brakes 4 wheel disc (Girling), with servo assist
(Various sources differ, slightly and these numbers are close estimates)
Fixed Head 2+2
Total 15287
Roadster 3200 pounds
FHC 2+2 3250 pounds
Length 15 feet 4 (Roadster and FHC 2+2)
Height 4 feet 1 inch
Width 5 feet 4 1/2 inches 
Top speed 150 mph  (with manual transmission)
Wheelbase 105 inches (Roadster and FHC 2+2)
Transmission 4-speed manual. All synchromesh. Optional Borg Warner auotmatic transmission on both models. This was now model 12, as opposed to the model 8 which had been available in previous series E-types.
Front Independent. Torsion bars, double wishbones and anti-roll bar
Rear Independent, coil springs. Mounted in separate subframe.
Chassis Numbers
Roadster 1S1001 and up (RHD models)
1S20001 and up  (LHD models)
Fixed Head 2+2 1S50001 and up (RHD models)
1S70001 and up (LHD models)
Engine Numbers
All models 7S prefix. then 4 or 5 digit engine number. For further details see the engine numbers page
Standard Equipment Leather seating on all models, Painted steel wheels 15" rim x 6" wide. (silver colored). Wire wheels, both stove enamel and chrome wheels of the same dimensions were optional extras. This was a change from the earlier series, in which wire wheels were standard..
Options Stove Enamel and  Chrome wire wheels. Various radios, fog lights,   White wall tires. 3 speed automatic transmission on both models, Electrically heated glass for rear window of coupes. Air conditioning and power steering. Detachable hardtop for the roadster model.
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Copyright 1995-1998