can any one help me wih an engine number it has been in my garage fo a few years now and i have forgot where it came from the engine number is 12HA61AA and the gear box number is A/BZ4 BC&M DAM2886
engine numbers
Started by
stag
, Nov 06 2005 07:23 PM
7 replies to this topic
#1
stag
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Mini Mad
Posted 06 November 2005 - 07:23 PM
can any one help me wih an engine number it has been in my garage fo a few years now and i have forgot where it came from the engine number is 12HA61AA and the gear box number is A/BZ4 BC&M DAM2886
#2
The Matt
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You don't escape that easily.....
- Name: Matt
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#4
Bluemini
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Mini Doctor
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Posted 06 November 2005 - 09:24 PM
12H = 1275 high compression
#5
Guess-Works.com
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Posted 07 November 2005 - 08:33 AM
12H = 1275 Horizontal ( or transverse )
#6
Dan
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On Sabbatical
Posted 07 November 2005 - 05:13 PM
Yeah, BMC dropped the H for high and L for low thing many decades ago!
#7
The Matt
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Posted 07 November 2005 - 06:21 PM
out of interest, what was the difference between the high and low compression factory engines? Is it the combustion chamber capacity in the head that differs or is it the piston shape?
#8
Guess-Works.com
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Posted 07 November 2005 - 06:48 PM
Pistons, usually the pin to crown height.. ...
This can be shown by comparing a set of 21253 and 21251 heapolite pistons,
This can be shown by comparing a set of 21253 and 21251 heapolite pistons,
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