Cylinder head Identification by casting

Side valve, 803, 948, 1098., 1275 and Vizard mods

Cylinder head Identification by casting

Postby Big Al » Thu Feb 27, 2014 11:02 am

This has been sent to me by Ajay. When I work out how to fit tabs/tables directly onto the post I convert it.

Cylinder head identification.docx
Cylinder head identification by casting
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Cylinder head identification.pdf
Cylinder head identification by casting
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Both downloads are the same, just giving the option.
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The lists miss the 12G 1316 cylinder head fitted to the 1275 Austin America. This head is similar to a normal small valve 940 head - but has little injector ports for exhaust gas recirculation - to 'help' emissions..... Some say it has thicker port walls and so is better for serious modification. I rather doubt this myself! I do have one of these heads - although not common, they are not as 'rare' as may be imagined.
I always thought the 206 head was only fitted to early 1098 Spridgets......and all 998 Mini Cooper engines (as far as I understand) had the 295 head.
 









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Re: Cylinder head Identification by casting

Postby bmcecosse » Wed Mar 05, 2014 11:13 pm

Also this head- there's not much known about it!

miniexphead2.JPG


miniexphead.JPG
 









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Re: Cylinder head Identification by casting

Postby MM » Thu Sep 04, 2014 3:11 pm

Which part number is it, and what are the three holes for?
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I believe it was an experimental head to research possible emissions and economy improvements. The holes are thought to be for instrumentation probes... I guess nothing came of it! :evil:
 









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Where are the spark plug holes?
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Re: Cylinder head Identification by casting

Postby Custard » Sun Sep 07, 2014 7:23 am

Trying to make an A Series Diesel perhaps?

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Re: Cylinder head Identification by casting

Postby MickEssex » Sun Sep 07, 2014 10:34 am

Custard wrote:Trying to make an A Series Diesel perhaps?

Sean.


No holes for glow plugs. :?
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Re: Cylinder head Identification by casting

Postby Custard » Sun Sep 07, 2014 8:37 pm

I have come across a diesel years ago that had a single element like an electric fire in the air intake.

Heats the air coming in hot enough to do the business.

One of those holes could even be a glow plug and just start it on one, the others would then chime in once the speed went up.

Only guessing of course.

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Re: Cylinder head Identification by casting

Postby MM » Fri Sep 12, 2014 2:55 pm

bmcecosse wrote:The lists miss the 12G 1316 cylinder head fitted to the 1275 Austin America. This head is similar to a normal small valve 940 head - but has little injector ports for exhaust gas recirculation - to 'help' emissions..... Some say it has thicker port walls and so is better for serious modification. I rather doubt this myself! I do have one of these heads - although not common, they are not as 'rare' as may be imagined.
I always thought the 206 head was only fitted to early 1098 Spridgets......and all 998 Mini Cooper engines (as far as I understand) had the 295 head.


Is that similar to the Midget head shown in this clip?

https://www.youtube.com/watch?v=fka7-4eBMI8
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Cylinder head Identification by casting

Postby Michaelkl » Thu Dec 11, 2014 1:21 pm

Thinking about swapping my b18a1 head what are the easiest heads to swap and what all would I need, and also what hp and torque gains would I see?
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Depends what alternative heads are available to you locally.... I assume it is a 948 engine?
 









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Re: Cylinder head Identification by casting

Postby MM » Thu Dec 11, 2014 11:45 pm

I suspect 'Michaelkl' may be a spammer; the head referred to is for a Honda engine:

http://en.wikipedia.org/wiki/Honda_B_engine
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