These links below may be useful now the MiniMania (USA) website seems to have gone.
Classic Mini Engine Plate Decoder:-
https://www.classicm.../engine-decoder
Classic Mini Chassis Plate/VIN Decoder:-
https://www.classicm...chassis-decoder
Note about Build Number
"The first car at Longbridge was number 101, as was the first at Cowley. From then on, each factory continued with their own number sequence regardless of the model; e.g., Saloon, Van, etc. In other words, each model did not start at 101 and maintain its own sequence. Saloons and Vans, etc., are mixed in the number sequence along with the Cooper and Cooper S models."
Note about Assembly Plant
"This seems to be used inconsistently on English-built cars, and it is understood that the car was built at the "normal" factory if the letter is left off; e.g., an Austin, Riley or Wolseley at Longbridge may or may not have an "A" after the sequence number. Yes, there were Austin Minis built at the Morris plant in Cowley and Morris Minis built at the Austin plant in Longbridge. Note that all English-built Cooper and Cooper S models (Austin and Morris) as well as Riley Elf and Wolseley Hornet models were built at the Longbridge, Austin plant."
(Please note the above details were pulled from Mini Mania's technical articles).
A Series & A+ Engine number decoder (Guessworks) :-
https://www.guess-wo...Tech/engine.htm
Identification Numbers (Minispares) :-
https://www.minispar...apter/chap0101/
