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Mini Cooper S Head Mk1 Vs Mk2 difference
https://ausmini.com/forums/viewtopic.php?f=2&t=100617		 Page 1 of 1
Author:  clr50 [ Thu Dec 17, 2020 2:25 am ]
Post subject:  Mini Cooper S Head Mk1 Vs Mk2 difference
Hi guys, just wondering if you could help out, Is there a difference between the Mk 1 Cly head compared with the Mk 2, and what are they?

I have a Cooper S head that has been cleaned and crack tested OK, hence want to be able to give correct info for advertising.

Thanks Col.
Author:  drmini in aust [ Thu Dec 17, 2020 7:37 am ]
Post subject:  Re: Mini Cooper S Head Mk1 Vs Mk2 difference
Part number cast on top-
12G163 is MK 1
Edit no it's AEG 163
2A185 is very early MK 1

12G940 is MK 2, casting shared with other 1275 motors. eg. Morris 1100S.
Cooper S head usually stamped 12G1805 near thermostat.
Author:  gtogreen1969 [ Thu Dec 17, 2020 9:54 am ]
Post subject:  Re: Mini Cooper S Head Mk1 Vs Mk2 difference
drmini in aust wrote:
Part number cast on top-
12G163 is MK 1.


AEG163
Author:  drmini in aust [ Thu Dec 17, 2020 12:23 pm ]
Post subject:  Re: Mini Cooper S Head Mk1 Vs Mk2 difference
gtogreen1969 wrote:
drmini in aust wrote:
Part number cast on top-
12G163 is MK 1.


AEG163

Thanks, edited.
my bad memory. :oops:
Author:  miniron [ Thu Dec 17, 2020 3:13 pm ]
Post subject:  Re: Mini Cooper S Head Mk1 Vs Mk2 difference
A bit more trivia.
IIRC, very early MK1 heads were painted yellow under the rocker cover and later heads were painted blue.
Yellow ones were modified to improve ?????? cooling or cracking or ???? - (kraft disease problem)
I can't access the Special Tuning docs right now which have more info.

RonR
Author:  AJ [ Thu Dec 17, 2020 6:53 pm ]
Post subject:  Re: Mini Cooper S Head Mk1 Vs Mk2 difference
What was an AEG165 used on , I have one , it looks identical to the AEG163
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