Part #
HS6 Carbs
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Our Moss MGB supercharger system uses the same Eaton positive displacement roots-type supercharger found on contemporary OEM applications such as Mercedes Benz and Jaguar. In spite of its modern origin, we were careful to design the system to look like it was a factory installed option that complements the classic MG image.

Our engineers designed an intake manifold that provides equal airflow, pressure and fuel mixture to each cylinder. By optimizing the distribution in the manifold for each cylinder, you can run more boost pressure without the chance of harmful detonation. Our Moss supercharger system produces 5-6 psi of boost at sea level and bolted to a stock engine you can expect a minimum 50% increase in rear wheel horsepower.

The Supercharger kit is complete and includes a 4 rib serpentine belt drive system, new cast iron water pump, a set of colder NGK BPR7ES sparkplugs and a high-flow K&N air filter. The 1968-74 1/2 kit also includes a new Lucas high output alternator. Detailed installation instructions with photos are also included, as wells as being available below by clicking the "Info" button. The installation can be completed by a competent mechanic or hobbyist with hand tools. Installation time will vary depending on many factors, we have had reports of up to 12 hours of shop time necessary to complete installation and tuning.

Note: 1975 cars require 1976-80 pedal box, contact tech. dept. for details





The Longest in the Business

  • All Classic British products are warrantied to be free from defects in material and workmanship for 2 years from the date of invoice.
  • All superchargers, supercharger components, and supercharger hardware are warranted to be free from defects in material and workmanship for 1 year from date of invoice.
  • Moss Motors, Ltd. will, at its discretion, repair or replace any part that fails in service within the warranty period. This warranty does not cover labor, failure of related components, normal wear of brake or clutch components or failure resulting from alteration, misuse, accidental damage, faulty installation, or faulty repair.
  • Warranty requests should be submitted to our sales department and must be supported by the original Moss Motors purchase invoice and documentation of the failure.
Make: MG Model: MGB Series: RD, GT Year: 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980