Lotus Elan

Chassis numbers

PostPost by: bitsobrits » Sat May 15, 2021 2:25 am

So I've found three numbers on my Elan S3 chassis, and two make sense.

There's the chassis number itself, located on the upper flange in front of the right motor mount.
Then Lotus part number for the chassis 26A701 located on top at the front edge of the center box tube.
And finally 2129 on the lower right flange almost directly below the chassis number. See photo

The last one is the mystery number as it has no relation to the chassis number or anything else I can think of.

Any ideas?
IMG_0627 (1).jpeg and

Elan S1 1963-Bourne bodied
Elan S3 1967 FHC pre airflow

Elan S1 1964
Elan S3 1966 FHC pre airflow
Elan S3 1967 FHC airflow
Elan S4 1969 FHC
Europa S2 1970
Esprit S2 1979
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PostPost by: el-saturn » Sat May 15, 2021 5:02 am

mine (s3: 36/498) is here: maybe to be found under el-saturn?? sandy don´t know how to add them
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PostPost by: gjz30075 » Sat May 15, 2021 9:20 am

I, too, have a lower flange number, in the 9XXX range. I call the upper flange number
the VIN (or chassis number) and the lower flange number simply a sequential chassis build number. Maybe
Tim W will chime in here.
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45/0243K Sprint
36/5727 pre airflow coupe
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