Morgan often use a different belt to the one normally used by an engine in its tin top application.
When new, the belt may well have had a length code but this had vanished from the belt on our 4/4 when the time came for replacement.
Unless an owner of the same model pops up below, your best best is to telephone Brands Hatch Morgans and order a belt. Once you have the correct belt you will have the Gates reference for future replacements.
Last edited by Paul F; 05/05/23 10:09 PM.