Motor Car History
Technical History of the Motor Car

      

1890s  1900s  1910s  1920s  1930s  1940s  1950s  1960s   1970s  1980s  1990s  2000s  2010s

Toggle Navigation
  • Home
  • Makes and models
  • Motor car History
  • Maintenance Guide
    • Engines By Make
    • Engine Components
    • Electrical & electronic
    • Gearbox & Drivetrain
    • Induction & Exhaust
    • Suspension Types
    • Tyres wheels Brakes
    • Vehicle Body types
  • Trivia
  • Register
  • *Top rated*
  • You are here:  
  • Motor Car
  • Makes and Models
  • H
  • Hillman
  • Hillman Imp Californian (1967-1970)

Manufacturer A-Z

  • ALL
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z
Sports Cars
Britain
1960s

Hillman Imp Californian

 images/1/v/1969-Hillman-Imp-Californian.jpg

Manufacturer

Rootes Group

Class

Sports car

Production

1967 to 1970

Assembly

Linwood, Scotland  

Body style

2-door coupe 

Layout

RR layout

Engine

875 cc Straight-4 Overhead camshaft

Transmission

4-speed manual all-synchromesh.

Wheelbase

82 in, 2,083 mm

Length

139 in, 3,531 mm

Width

60.25 in, 1,530 mm

Height

52.50 in, 1,333 mm

Dry weight

1,523 1b, 691 kg

Max Speed

80 mph, 128.8 km/h 

Price new

£713 inc

 

The Hillman Imp Californian was a rear-engine coupe car, manufactured under the Hillman marque by the Rootes Group (later Chrysler Europe) from 1967 to 1970.

History

The Imp Californian coupe, was introduced in 1967 at the same time as the van's pressings were used to create an estate car. This coupe had 2 doors with 4 seats the front seats separate units with reclining backrests the divided rear seating the rear seats can be folded down for extra luggage space. Instruments, Speedometer, fuel gauge and warning lights for flashing indicators, oil pressure/water temperature,
headlamp main beam and ignition. Interior light and panel illumination. 

Hillman Imp Californian

The coupe bodyshell was similar to the standard body mk 2 imps but featured a more shallow-raked windscreen and rear window which, unlike that on the standard bodied cars, could not be opened. The attempt at a sportier design did not translate into better acceleration or top speed figures and the aerodynamics of the standard saloon were actually slightly better. The new body style made its first appearance at the Paris Motor Show in October 1967, with the introduction of the sporting Sunbeam Stiletto. The coupe body had also appeared, with less powerful engines, in the Hillman Imp Californian announced in January 1967 and the more luxurious Singer Chamois coupe. By 1967 the company had been acquired by Chrysler, to become part of Chrysler Europe. A year later, ahead of the 1968 London Motor Show, the recommended retail prices of most Imp models were reduced for the domestic market by more than four per cent, despite the general price inflation affecting the UK.

Rear-engine cars generally suffer from oversteer handling characteristics to some extent, and to counteract this as much as possible, the Imp had a semi-trailing arm independent rear suspension system the distribution of weight was 38% to the front axle, and 62% rear axle. This relatively costly and sophisticated solution, typical for small car design at the time, was insisted upon by its designers after testing at length a Chevrolet Corvair with swing axles. To attain balanced handling, the Imp actually used swing axle geometry at the front, but this initially led to too much understeer and the camber was later reduced by lowering the pivot points. 

Standard features self-parking screen wipers with heavy duty motor. two sun visors,headlamp flasher switch, zone toughened windscreen. builton heating and ventilation with blower unit. screen-washers,four stowage pockets. front quarter-lights, floor carpeting. ashtrays, padded armrests on rear side pockets, door operated interior light. twin-tone hornsand wheel-trim discs.

Colour schemes
Signal Red with Black upholstery ,Ming Blue with Blue upholstery ,Polar White with Black upholstery ,Polar White with Blue upholstery
Lincoln Green with Black upholstery ,Golden Bronze Metallic with Black upholstery

OPTIONAL EXTRAS. White-wall tyres, Smiths Radiomobile, reversing light, overriders, seat belts, etc.

Hillman Imp Californian Technical details

The Imp's engine was mounted behind the rear wheels, slanted over at 45° to fit. This was done to keep the center of gravity low and to minimize its effects on the roadholding of the car, a 4 stroke water cooled with 4 cylinders slanted at 45°, in line. fitted with 1 Solex 30 PlH-5 semi-downdraught single barrel carburettor .Fitted to a 4 speed mechanical gearbox with synchromesh gears on  1st, 2nd, 3rd and 4th.

Performance

  • Engine Capacity 53.39 cu in, 875 cu cm
  • Fuel Consumption 43.7 m/imp gal, 36.2 m/US gal, 6.5 1 x 100 km
  • Max Speed 80 mph, 128.8 km/h
  • Max power (SAE): 42 hp at 5,000 rpm
  • Max torque (SAE): 56 1b ft, 7.7 kg m at 2,800 rpm
  • Max engine rpm: 5,600
  • Specific power: 48 hp/l
  • Power- weight ratio: 36.2 lb/hp, 16.4 kg/hp
  • Acceleration: standing 1/4 mile 21.8 sec, 0—50 mph (0—80 km/h) 14.6 sec
  • Speed in top at 1,000 rpm: 15.1 mph, 24.3 km/h.
  • Export engine
  • Max power (SAE) 37 hp at 4,900 rpm
  • Max torque (SAE) 53 1b ft, 7.3 kg m 2,800 rpm
  • 8 compression ratio
  • 42.3 hp/l specific power.

 

Related items
Britain 1970s | Britain 1960s | Vehicles launched in 1967 | British Sports cars | coupe | Hillman Imp | Sports Cars

Rating

Have you Say: Rate this
Overall Vote
  • 1
  • 2
  • 3
  • 4
  • 5
1. Performance & Specification
  • 1
  • 2
  • 3
  • 4
  • 5
Built to last?
2. Appearance Overall *Cool factor*
  • 1
  • 2
  • 3
  • 4
  • 5
How good it looks ?

Technical

Service
  • Hillman Imp Californian maintenance and Service Guide (1967-1970)

    Fuel: 95-100 oct petrol
    Engine oil change: 5 im pt, 5.92 US pt, 2.8 1, SAE 5W-20 (winter) IOW-40 (summer), change every 5,00 miles, 8,000 km
    Engine oil lubricating system capacity: 5.50 imp pt, 6.55 US pt
    Gearbox and final drive oil: 4.50 imp pt, 5.50 US pt, 2.6 1, SAE 8 EP, change every 15,000 miles, 24,100 km
    Cooling system capacity: 11 imp pt, 13.11 US pt
    Greasing: every 5,000 miles, 8,000 k 4 points
    Spark plug type: 2250
    Tappet clearances: inlet 0.005 in, 0.13 mm, ehaust 0.011 in, 0.28 mm
    Valve timing: inlet opens 6° before tdc and closes 46° aft bdc, exhaust opens 46° before bdc and closes 6° after tdc
    Normal tyre pressure front 15 psi, 1 atm, rear 30 psi, 2.1 atm.
    Width of rims: 4.5" pressed steel wheels
    Tyres: 5.50 x 12
    Fuel tank capacity: 6 imp gal, 7.1 US gal. located under front luggage compartment 
    Carrying capacity: 706 1b, 320 kg

    Spare wheel housed in front luggage compartment. 

    © Motor car History

Technical
  • Hillman Imp Californian Technical details and specifications (1967-1970)

    ENGINE
    location rear, 4 stroke
    cylinders: 4, slanted at 45°, in line
    bore and stroke: 2.68 x 2.38 in, 68 x 60.4 mm
    engine capacity: 53.39 cu in, 875 cu cm
    compression ratio: 10
    cylinder block: light alloy, dry liners
    cylinder head: light alloy
    crankshaft bearings: 3
    valves: 2 per cylinder, overhead, in line, thimble tappets
    camshafts: 1, overhead
    lubrication: eccentric pump, full flow filter
    carburation: 1 Solex 30 PlH-5 semi-downdraught single barrel carburettor
    fuel feed: mechanical pump
    cooling system: water

    TRANSMISSION
    driving wheels: rear
    clutch: single dry plate (diaphragm), hydraulically controlled
    gearbox: mechanical; gears: 4 + reverse
    synchromesh gears: 1st, 2nd, 3rd, 4th
    gearbox ratios: I 3.417, II 1.833, III 1.174, IV 0.852, rev 2.846
    gear lever location: central
    final drive: Trans-axle crown wheel and pinion hypoid bevel; axle ratio: 4.857.

    CHASSIS
    type integral
    front suspension: independent, U-shaped swinging semi-axles, coil springs, telescopic dampers
    rear suspension: independent, semitrailing arms, coil springs, telescopic dampers.

    STEERING
    Rack and pinion unit with greaseless Steering linkage
    turns of steering wheel lock to lock: 2.60.
    turning circle (between walls): 31.5 ft, 9.6 m
    Two-spokesteering wheel

    BRAKES

    drum, 2 front leading shoes Girling system with hydraulic operation. 8 in. diameter brake drums
    area rubbed by linings: total 150.80 sq in, 972.66 sq cm.
    Handbrake positioned on floor between front seats operated mechanically on rear wheels.

    ELECTRICAL EQUIPMENT
    voltage: 12 V
    battery: 32 Ah (option) 38 Ah battery located in right-hand rear wing
    generator type: dynamo, 297 W
    ignition distributor: Lucas

    DIMENSIONS AND WEIGHT
    wheel base: 82 in, 2,083 mm
    front track: 50.50 in, 1,283 mm
    rear track: 48 in, 1,219 mm
    overall length: 139 in, 3,531 mm
    overall width: 60.25 in, 1,530 mm
    overall height: 52.50 in, 1,333 mm
    ground clearance: 5.50 in, 140 mm
    dry weight: 1,523 1b, 691 kg

    © Motor car History

Manuals

Download: Workshop manuals Tech Guides exclusive to registered users.

  • Hillman Previous 9 / 22 Next
  • Worldwide
  • Argentina
  • Australia
  • Austria
  • Belgium
  • Brazil
  • British
  • Bulgaria
  • canada
  • Czech
  • Chile
  • Czechoslovakia
  • China
  • Denmark
  • Egypt
  • Finland
  • Greece
  • Guernsey
  • Germany
  • Hungary
  • India
  • Ireland
  • Indonesia
  • Korean
  • Mexico
  • Netherlands
  • New Zealand
  • Norway
  • Philippines
  • Poland
  • Portugal
  • South Africa
  • sweden
  • Romania
  • Turkey
  • Spain
  • Switzerland
  • Taiwan
  • Serbia
  • Uruguay
  • Ukraine
  • United States
  • Venezuela
  • Yugoslavia

On Motor Car

  • Maintenance Guide
  • Makes and Models
  • Motor car History
  • Film & TV
  • Your Top Rated *****
  • Join here

log on

Log in to Motor car

  • Forgot your username?
  • Forgot your password?

Welcome To Motor Car

  • Heartbeat
  • War Time
  • Rootes
  • Thrupp & Maberly
  • Side-valve Engine
  • Fitted with Zenith carburettor
  • Borg-Warner
  • Hillman Imp
  • Hillman Minx
  • Vehicles launched in 1958
  • Vehicles launched in 1966
  • Vehicles launched in 1967
  • Britain 1930s
  • Britain 1940s
  • Britain 1950s
  • Britain 1960s
  • Britain 1970s
  • Vintage vehicles
  • Zenith carburettor
  • Hillman Husky

Related Britain

  • British related
    • British Automotive 1890s
    • British Automotive 1900s
    • British Automotive 1910s
    • British Automotive 1920s
    • British Automotive 1930s
    • British Automotive 1940s
    • British Automotive 1950s
    • British Automotive 1960s
    • British Automotive 1970s
    • British Automotive 1980s
    • British Automotive 1990s
    • British Automotive 2000s
    • British Automotive 2010s
    • British Coach and Busses
    • British Coachbuilders
    • British Concept Cars
    • British Sports Cars

Please help to keep this site active.

Related Hillman
  • Hillman ModelsHillman Models
    • Imp
    • Imp engine
    • Minx

Enjoy all of Motor Car Here


Back to Top

© 2025 Motor Car History