Peter - what can you say about the first series engine stamp being a "I"CH
rather than a "1"CH
as always thanks for your insight - jim lesher
> From: peter.svilans@rogers.com
> To: healeys@autox.team.net
> Date: Sat, 18 Dec 2010 22:03:28 -0500
> Subject: [Healeys] 26H engine
>
> Going by the BMC Workshop Manuals:
>
> The first six cylinders carried on using the 1C ( first series C-type
engine)
> number system, with an "H" denoting High Compression.
>
> The numbering system was changed from late 1957 on, and was now three
groups
> separated by slashes:
>
> In the "First Prefix Group":
> - the number is the displacement, ie. 26 = 2.6 liter, or 8 = 850cc
>
> - the first letter is the BMC make, ie. M is for Morris, G for MG, R for
> Riley, V for Princess, W for Wolseley, J for Commercial and......wait for
it
> Gergo.......H is for "Miscellaneous Special".
>
> 'A' for Austin as a first letter is not found on Austin motors. ( for eg.
the
> first 3 liter A-99 had only a '29' motor, but the similar Wolseley had a
> '29W' motor.
>
> - the second letter after the displacement (or the first one after, for
> Austins) is for "variations of engine type". Here, an 'A' was used as a
> First Variation. For eg. the second model of 3 liter Austin, the A-110, had
a
> '29A' motor, and the corresponding Princess Mk II had a '29VA' motor. The
> Austin motors in the Healey 3000 had 29D,E,F and K variations.
>
> The "Second Prefix Group" has to do with the gearbox, R being Laycock
> overdrive (O is Borg Warner), and U being side or centershift (as opposed
to
> column shift).
>
> The third group is the serial number, preceded by a high (H) or low (L)
> compression indicator.
>
> ........so is there anything interesting about your 26H motor ?
>
> Peter
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