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1974 MG B GT ****** Extensively documented example with uprated engine and significant recent expenditure

United Kingdom • 31 Aug 2026 • Lot 30

Vehicle Details

AI Listing Summary

This 1974 MGB GT stands out with a recently uprated Stage II 1950cc engine and extensive documentation, including major structural work in 2014 and significant mechanical expenditure in May 2026.
It features a substantial history file with restoration photos and invoices, offering a unique blend of the classic MGB GT character with a more performance-oriented specification, and is offered with no reserve.

Condition

8

The car has undergone significant recent expenditure on mechanicals and structural work, indicating it's well-maintained. While it has an uprated engine and a detailed history, the mention of 'substantial structural work' and 'cutting out affected sections' suggests it's not pristine but has been thoroughly addressed, justifying an 'Excellent' rating.

/ 10

Transmission:

Manual

Chassis No:

GHD5-359876G

Odometer:

39,750 miles

Reg Number:

GRB 631N

RHD/LHD:

LHD

MOT – April 2027 Few British sports cars have enjoyed the enduring popularity of the MGB GT, and ‘GRB 631N’ is a particularly interesting example thanks to its uprated mechanical specification and impressively detailed history file.

At the heart of the car is a 1950cc Stage II engine.

The accompanying documentation records that the reconditioned unit was sourced from the MG Owners’ Club and installed in ‘GRB 631N’ in June 1997, with its first run taking place that August.

The specification sheet records twin 1.5-inch SU carburettors with AAA needles and K&N filtration, together with uprated ignition and exhaust arrangements.

The substantial history file provides an unusually detailed insight into the car's development over several decades.

Period photographs document earlier restoration work, including images annotated ‘GRB631N May 93 Rebuild’, showing attention to the front bodywork and surrounding structure.

Further invoices demonstrate continued investment in the car.

Documen...