
Hillman Imp Californian (1967-70)
Production Total: 6,100
Recorded in UK 2024
Licensed=42 SORN=36

The Hillman Imp Californian, like many classic cars, has its share of common faults. Here are some of the most notable issues:
1. **Corrosion**: This is a major problem for the Imp. Common areas include:
- Leading edge of the double-skinned bonnet
- Door bottoms
- Front and rear wheel arches
- Base of the inner wheel arch
- Entire floor pan
- Rear suspension pans (where the coil springs are located)
- Spring mounting points
- Box-section swing axles up front.
2. **Engine Issues**: The all-aluminium engine can last well if anti-freeze levels are maintained. However, old antifreeze can quickly eat into the alloy and block the radiator, causing it to overheat.
3. **Head Gasket**: Look for head gasket failure by checking the underside of the oil filler cap for a mayonnaise-like substance. Also, monitor the coolant level; if it drops below the base of the header tank, the engine can overheat, causing the block and cylinder head to warp.
Despite these issues, the Hillman Imp Californian remains a beloved classic for many enthusiasts.
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Generations
The Hillman Imp had two main generations:
1. **Mark I (1963-1965)**: This was the initial version of the Hillman Imp, featuring a pneumatic throttle linkage and an automatic choke.
2. **Mark II (1965-1976)**: This version introduced several improvements, including a more conventional throttle linkage and choke. It also included the Commer Imp van and the Hillman Husky estate.
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Trim Levels
The Hillman Imp Californian was available in several trim levels and variations over its production run. Here are some of the notable ones:
1. **Standard Trim**: This was the base model with essential features.
2. **Deluxe Trim**: This version included additional features such as better interior materials and more chrome detailing.
3. **Sport Trim**: This trim level featured a more powerful engine and sportier styling elements.
The Hillman Imp Californian had several unique features that set it apart from other models:
1. **Raked Fastback Body Line**: The Californian featured a markedly raked fastback body line, giving it a sporty and distinctive appearance.
2. **Curved Side Windows**: These windows increased shoulder room, enhancing passenger comfort.
3. **Lowered Roofline**: The roofline was lowered, contributing to its sleek profile.
4. **Deep-Slope Windscreen**: This design element added to the car's aerodynamic look.
5. **Dropped Steering Column**: This feature improved the driving position and comfort.
6. **Folding Rear Bench Seat**: This allowed for increased luggage space when needed.
7. **Automatic Choke**: A rare feature for compact cars outside the United States until the 1970s.
These features made the Hillman Imp Californian a unique and attractive option for car enthusiasts.
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Engines
During the 1967-1970 period, the Hillman Imp was primarily equipped with an **875cc all-aluminium, overhead-cam, inline-four engine**¹². This engine was known for its free-revving nature and could run up to 7,000 rpm.
There were also sportier versions available, such as the **52bhp Chamois Sport and Sunbeam Imp Sport**, and the limited-run **60bhp 998cc Rallye Imp and Rallye Chamois**.
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Performance
The Hillman Imp Californian, produced between 1967 and 1970, offers a unique driving experience. Here are some key performance specifications:
- **Engine Power**: The 875cc engine produces around 38 bhp at 5000 rpm.
- **Torque**: It delivers a maximum torque of 71 Nm (52 lb-ft) at 2800 rpm.
- **Top Speed**: The car can reach a maximum speed of approximately 81 mph (130 km/h).
- **Acceleration**: It can go from 0 to 60 mph in about 16.3 seconds.
- **Fuel Consumption**: The fuel consumption is around 34 mpg.
Despite its modest power, the Hillman Imp Californian is known for its nimble handling and fun driving dynamics, making it a beloved classic among enthusiasts.
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Spares
You can find spares for your Hillman Imp Californian at several places in the UK and Ireland:
1. **Malcolm Anderson Imp Parts**: They offer a large stock of new and used parts for Hillman Imps, including engines, cylinder heads, cams, and more. You can contact them at 01823 350360 or email malcolmimps@aol.com.
2. **Jonnie Jumble**: They have a variety of Imp parts in stock, including air filters, brake cylinders, gaskets, and more.
3. **Imp Club Spares**: The Imp Club provides a comprehensive list of spares available for Hillman Imps and derivatives. You can contact them at spares@theimpclub.co.uk.
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Specialists
There are several garage services in the UK and Ireland that specialize in classic cars, including the Hillman Imp Californian. Here are a few options:
1. **Imp Club**: They offer a network of specialists and enthusiasts who can provide advice and services for maintaining and restoring Hillman Imps.
2. **Car and Classic**: This platform lists various garages and specialists who can work on classic cars, including the Hillman Imp.
3. **H&H Auctioneers**: They have connections with specialists who can provide services for classic cars.
These resources should help you find the right garage services for your Hillman Imp Californian.
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Racing
The Hillman Imp Californian did compete in racing. The Hillman Imp, including its various versions like the Californian, was quite successful in motorsport. Notably, the Imp was used in touring car racing, and Bill McGovern won the British Saloon Car Championship in 1970, 1971, and 1972 with an Imp. Additionally, Alan Fraser's team received official works backing for their Hillman Imp racing efforts.
The Imp's lightweight and nimble handling made it a competitive choice in various racing events.