• Year of manufacture 
  • Motorcycle type 
  • Engine number 
    H 90790
  • Lot number 
  • Condition 
  • Colour  
  • Location


Property of a deceased's estate
1927 AJS 498cc Model H8 'Big Port' Project
Frame no. H 91666
Engine no. H 90790

After victory in the 1920 Isle of Man Junior TT, AJS's new overhead-valve 350 racer scored a memorable double the following year, Tom Sheard winning the Junior race and Howard Davies the Senior, the first time such a feat had been achieved on a 350. The production version duly made its debut in November 1922, delighting clubmen everywhere with its 'racer on the road' performance. A right-first-time design destined to achieve countless successes in the hands of privateers, the overhead-valve AJS - initially built only as a '350' and latterly known as the 'Big Port' - became available as a '500' for the first time in 1926. Coded 'Model 8', the new 3½hp model followed the general lines of its successful smaller sibling. The engine combined the latter's 90mm stroke with an 84mm bore and distinguished itself in the 1926 Isle of Man Senior TT when AJS works rider Jimmy Simpson became the first man to lap at over 70mph. Progressively updated, the Model 8 remained in production until the Matchless take-over in 1931.

This partially dismantled and incomplete example of the rarer, 500cc 'Big Port' is offered for restoration and sold strictly as viewed. It should be noted that the frame and engine, although both from 1927, are not an original pairing. There are no documents with this Lot.

Bonhams 1793
101 New Bond Street
United Kingdom
Contact Person Kontaktperson
First name 
Bonhams Collectors’ Car department