Weber 38 DGAS Conversion Kit – MGB 1800 B-Series | Twin SU Replacement

Give your MGB with the 1800 B-Series engine improved drivability, smoother throttle response and a more enjoyable driving experience with this Weber 38 DGAS conversion kit, designed to replace the original twin SU carburettor setup.

Developed specifically for the MGB B-Series 1800 engine, this complete Weber conversion kit provides a practical alternative to the original twin SU configuration while retaining the character of the classic B-Series engine.

Kit Includes

• 1 x genuine Weber 38 DGAS carburettor with automatic choke
• Carburettor calibrated and jetted for the MGB 1800 B-Series engine
• 1 x intake manifold
• 1 x throttle linkage / accelerator control assembly
• 1 x high-quality air filter
• Flexible mounts, studs, nuts and required fitting accessories

The carburettor is supplied with a base calibration suitable for the MGB 1800 B-Series, with fine tuning recommended to suit individual engine condition and specification.

Why Convert from Twin SU Carburettors to a Weber 38 DGAS?

The Weber 38 DGAS provides a progressive throttle response and a carburettor configuration well suited to road use in a classic MGB.

The automatic choke also makes starting and cold running more convenient.

This complete conversion kit is an ideal solution for owners looking to update the carburettor system on their MGB 1800 while retaining the character of the B-Series engine.

Recommended Fuel Pump

We recommend fitting this kit with a suitable low-pressure electric fuel pump for carburettor applications.

Webcon 12V Low-Pressure Fuel Pump – 0.17–0.30 bar / 2.5–4.5 PSI
Ref. PAFWFP17303

Key Features

• Brand: Weber
• Carburettor: Weber 38 DGAS
• Choke: Automatic
• Engine: B-Series 1800
• Application: MGB
• Original Configuration: Twin SU carburettors
• Type: Carburettor conversion kit
• Carburettor Manufacture: Spain
• Intake Manifold: Included
• Throttle Linkage: Included
• Air Filter: Included

Ideal For

• MGB 1800 B-Series
• Replacing twin SU carburettors
• Classic MGB restoration and upgrades
• Road-going classic MGBs
• Owners looking for a complete Weber conversion
• B-Series engine carburettor upgrades

Genuine Weber Carburettors

PAFClassic© is an official distributor of WEBER and WEBCON products.

All Weber carburettors supplied by PAFClassic are genuine WEBER carburettors manufactured in Spain under licence from Magneti Marelli.

We have access to more than 11,000 Weber carburettor and spare-part references, together with the Weber technical library, allowing us to source the appropriate components and technical information for your carburettor.

We recommend genuine Weber products to ensure correct specifications, quality and compatibility with genuine Weber components.