1989 Land Rover 110 – Cummins 6BT Conversion 

This is not a standard Land Rover, over the course of a comprehensive conversion completed in 2018, it has been rebuilt around one of the most respected diesel engines ever fitted to a 4×4. 

Every major modification has been chosen for long-term durability and real-world capability — from the galvanised chassis underneath to the custom transfer box gearing that makes it an effortless motorway cruiser.

BASE VEHICLE

1989 Land Rover 110

ENGINE

Cummins 6BT — 5.9 litre inline-six turbo diesel originally fitted to a Daf 45 lorry 

FUEL ECONOMY

~30 mpg

GEARBOX

Original 5 speed box fitted to the 6bt

TRANSFER BOX

Ashcroft Transmissions — 0.9 ratio final drive

MOTORWAY CRUISE

70 mph at ~1,800 rpm

ENGINE & DRIVETRAIN

The Ashcroft-built transfer box features their 0.9 ratio final drive gear — the result is a genuinely relaxed motorway vehicle. 70 mph arrives at just 1,800 rpm, dramatically reducing engine wear, fuel consumption, and noise on long journeys.

A modified fuel pump governor spring has also been fitted, allowing the engine to rev more freely beyond the standard cut-off and making full use of the 6BT’s power band.

CHASSIS & STRUCTURE

Chassis: Marsland galvanised — corrosion-proof for life, painted with Buzzweld CIO

Clutch: Air-assisted — light pedal effort

RX8 front seats, the drivers one being electrically operated

Range Rover classic rear seats

Led headlamps completely change night time driving

EQUIPMENT & COMFORT

Diesel night heater — effective cab warmth independent of the engine, ideal for camping or early morning starts in winter

Air-assisted clutch — makes the heavy-duty drivetrain entirely manageable in town and off-road

Two complete sets of wheels and tyres included: all-terrain and mud-terrain — genuine year-round versatility without the cost of buying a second set.

Optimill removable steering wheel with locking boss provides extra security. 

DOCUMENTATION & REGISTRATION

Conversion completed 2018

DVLA notified in writing of all modifications at time of conversion

Registered correctly reflecting the modified specification

MoT: The vehicle does not currently hold an MoT, but one will be obtained prior to sale. It will be sold with a valid MoT in place.

This is an honest, capable, and extensively modified Land Rover. The Cummins 6BT is one of the most bulletproof diesel engines in existence; combined with the Marsland galvanised chassis, the Ashcroft transfer box, and the thoughtful supporting modifications, this represents a significant investment of time and money done properly. Viewing is welcomed and encouraged — it will tell you everything you need to know.

This Land Rover was built by myself when I was running a workshop, it was built with the intention of never selling it. I haven't driven it on the road for a year now as my work has changed, so rather than have it sitting in the corner of the yard gathering dust I would rather it get used by a new owner and I can put the money to the next chapter in my life.

Located Salisbury, Wiltshire.