12G940 / 12G938 Cylinder head

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WPR678B
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12G940 / 12G938 Cylinder head

Postby WPR678B » Mon Oct 27, 2008 8:10 pm

I have just dug out a cylinder head that i took off a 1275 Midget engine a few years back and it is a 12G940 casting, but has 12G938 and the letter "U" stamped near the thermostat housing :o
The stamping looks original and similar to that i have seen on 11 stud Mini heads, but this is a 9 stud head and the only none standard thing i can see is that it is fitted with double valve springs :-?
Any idea's as i know some of you are hot on the head numbers! :lol: :wink:

Rob_Jennings
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Postby Rob_Jennings » Mon Oct 27, 2008 11:05 pm

9 stud? double springs? cooper s head at a guess?

quick google kicks up the following quote:
The 12G938 is the original head fitted to the early 1275s

`12G938' is a 12G940 casting, 1.312 inlets, 1.156 exhausts, used on common 1275.


that might match up with taking it of a midget block
Rob
Lizzy 1970 Morris Minor Traveller and Noah 1969 Morris Mini Traveller
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rayofleamington
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Postby rayofleamington » Mon Oct 27, 2008 11:37 pm

9 stud? double springs?
my midget engine was the same.
[Not looked at my latest midget engine properly apart from to sigh and wish for more time.]
Ray. MMOC#47368. Forum moderator.

Jan 06: The Minor SII Africa adventure: http://www.minor-detour.com
Oct 06: back from Dresden with my Trabant 601 Kombi
Jan 07: back from a month thru North Africa (via Timbuktu) in a S3 Landy
June 07 - back from Zwickau Trabi Treffen
Aug 07 & Aug 08 - back from the Lands End to Orkney in 71 pickup
Sept 2010 - finally gave up breaking down in a SII Landy...
where to break down next?
2013... managed to seize my 1275 just by driving it round the block :(

WPR678B
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Postby WPR678B » Wed Oct 29, 2008 7:08 pm

Thanks for that! :D :wink:

bmcecosse
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Postby bmcecosse » Wed Oct 29, 2008 8:29 pm

Not heard of the '938' version - but as the others say - it looks like Midget head because of the double springs. Standard size valves - so NOT the bigger inlet valved MG Metro head (which was also 9 hole) or the similar S head which was 11 hole!
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Bazzalucas
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Postby Bazzalucas » Thu Oct 30, 2008 3:00 am

My Moggie has a Midget 1275 of around 1973 vintage, with 9 studs and double valve springs.
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