420 Saloon

From 1966 to 1968

The range was further expanded with the introduction of the 420 in 1966, being an S-type from the windscreen back but with a revised frontal aspect incorporating a four headlight arrangement and shallower, wider grille. Under the bonnet a larger 4.2 litre twin carburettor version of the XK engine was fitted and the interior was again subtly modified. This was the first Jaguar to be entirely badge-engineered into a Daimler, known as the 420 Sovereign. Using Daimler badging and fluted trim, everything else about the car was pure Jaguar. The 420 was dropped in 1968 but the Daimler Sovereign continued until 1969.

Model Summary

Model Type:

Compact Jaguar Saloons

Production Dates:

1966 - 1968

Engine Range:

4.2 Litre Saloon

0 - 60 mph:

9.9 seconds

Top Speed:

123 mph

420 Saloon Technical Specifications

Technical Information

Engine Statistics

 4.2 Litre Saloon
Engine (cc)4235
Bore and Stroke (mm)92.07 x 106
Compression Ratio8:1 (7:1/9:1 optional)
BHP245
@ RPM5500
Torque (lb ft)283
@ RPM3750
Fuelling2x SU carbs

Engine Performance

 4.2 Litre Saloon
Top Speed123 mph
0 - 60 mph9.9 seconds
Fuel Consumption15.7 mpg

Model Specifications

 4.2 Litre Saloon
Transmission4-speed (3 synchro) later all synchro BW 3-speed auto
Wheel Size (in)15, steel, wire optional
Suspension (Front)Ind semi-trailing wishbones, coil springs, ant-roll bar
Suspension (Rear)Ind lower wishbones/upper driveshaft link, radius arms, coil springs
Brakes4 wheel disc, rear inboard

Model Dimensions

 4.2 Litre Saloon
Length (in)187.5
Width (in)67
Height (in)56.25
Wheelbase (in)107.75
Front Track (in)55.25
Rear Track (in)54.5
Weight (Cwt)33

Optional Extras

  • Choice of three radio installation with or without rear parcel shelf-mounted speaker
  • Laminated windscreen
  • Witter tow bar
  • Front seat belt
  • Choice of radial, town and country, or whitewall tyres
  • Borg Warner automatic transmission
  • Overdrive (for non-overdrive-equipped manual transmission cars)
  • Wire wheels with conversion kit for hubs, etc
  • Fire extinguisher
  • Sundym tinted windscreen and side windows
  • Wing mirrors
  • Integrated ignition/starter switch to steering column
  • Power-assisted steering

Chassis Numbers

ModelDriver SideChassis No. CommencedNumber made
420 SaloonRHD1F10017172
420 SaloonLHD1F250012629
Daimler SoveriegnRHD1A30015475
Daimler SoveriegnLHD1A70001354

420 Saloon Events

Header Image

The Jaguar Enthusiast' Club visit Hull in September.  For the first time, alongside a car show, we have a series of seminars on a range of topics including parts advice from SNG Barratt, oils from Millers Oils plus Jaguar memorabil...

The Jaguar Enthusiast' Club visit Hull in September.  For the first time, alongside a car show, we have a series of seminars on a r...

Mark Russell And Mark Gordon Cg

A day of classic racing at one of the best circuits in the UK. Join hundreds of car clubs and displays as well as get up close to racing legends.

A day of classic racing at one of the best circuits in the UK. Join hundreds of car clubs and displays as well as get up close to racing legends.

420 Saloon News

Cadwell Park Adam Powderham Pursues The Mid Field Pack

This 2.2 mile Parkland circuit is wonderful when dry but in the wet, with a grid full of Jaguars? A totally different story. Arriving on Friday for free practice, it was pouring & extremely slippery.

This 2.2 mile Parkland circuit is wonderful when dry but in the wet, with a grid full of Jaguars? A totally different story. Arriving on Friday for free practice, it was pouring & extremely slippery.

2015 Championship Main Image

There can be no nicer circuit than Oulton Park on a warm sunny day & that's what we woke up to. This was the final round of the championship with so much to win (or lose) for both class points & the overall championship.

There can be no nicer circuit than Oulton Park on a warm sunny day & that's what we woke up to. This was the final round of the championship with so much to win (or lose) for both class points & the overall championship.

Daimler Sovereign 420
420 Saloon

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