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Old 06-19-2021, 07:48 AM   #1
Tod
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Default Miller-style cylinder head

Back in December I asked about a cylinder head that turned out to be a Miller head, and not a Winfield as was believed. Since then I went to where this head was and took some info from it and modeled it up with a combustion chamber that resembles a Winfield crow foot chamber. I test cut a sample chamber in a block of wood and calculations result in a 6.25:1 chamber.


I then CNC cut a pattern, and modeled the deck cover core and water jacket. The deck core and water jacket will be made from 3D printed sand for the first batch of orders, which looks to be some aluminum and some iron versions.


The pattern does not have any nomenclature on it yet, as I do not know what lettering will be put on it.


I believe pricing for these will be $375-400, maybe $425.



Sample pictures of the almost complete models and pattern are attached.


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Old 06-22-2021, 06:17 AM   #2
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Default Re: Miller-style cylinder head

Here is what the water jacket and deck core look like assembled. The models are in the hands of the people that will 3D print them for prototype castings.

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Last edited by Tod; 06-22-2021 at 06:24 AM.
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Old 06-22-2021, 01:30 PM   #3
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Default Re: Miller-style cylinder head

Which style/size of spark plugs are you planning for your design?
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Old 06-22-2021, 03:54 PM   #4
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Default Re: Miller-style cylinder head

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Originally Posted by Two-Gun Bob View Post
Which style/size of spark plugs are you planning for your design?

The originals used pipe plug spark plugs, so that is the plan at first. 14mm will probably also be available.


Good question.



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Old 06-26-2021, 11:04 AM   #5
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Default Re: Miller-style cylinder head

The first sample cores assembled and ready for the foundry.


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Old 07-05-2021, 04:49 AM   #6
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Very nice work! Looking good
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Old 07-09-2021, 05:27 PM   #7
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Default Re: Miller-style cylinder head

I assembled 2 molds today to cast 2 iron prototypes of this new head.


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Old 07-14-2021, 03:52 PM   #8
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Default Re: Miller-style cylinder head

First 2 iron Miller style heads shot blasted and ready to machine for testing.


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Old 07-14-2021, 05:13 PM   #9
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Default Re: Miller-style cylinder head




Miller-style Cylinder Head - nice.
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Old 08-24-2021, 05:46 PM   #10
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Interesting project! Any progress since your last post?
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Old 08-24-2021, 06:03 PM   #11
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Interesting project! Any progress since your last post?

I made 2 castings. One is in a machining fixture ready to machine but I am crazy busy right now so machining is not under way yet.


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Old 08-24-2021, 06:07 PM   #12
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Default Re: Miller-style cylinder head

Okay. Do let us know when you are able to make further progress. Any thoughts on top “decoration” (script, name, etc.)?
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Old 08-25-2021, 03:53 PM   #13
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Okay. Do let us know when you are able to make further progress. Any thoughts on top “decoration” (script, name, etc.)?

I'm not sure what I will do for script.



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Old 08-25-2021, 11:39 PM   #14
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Default Re: Miller-style cylinder head

For script I visualized TOD written in a FORD like script, with the letters the same and the T with the Ford F flourish. It is a neat project and would be fun to own.
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Old 09-08-2021, 04:19 PM   #15
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Default Re: Miller-style cylinder head

Took some time to start machining on one of the first samples.


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Old 10-06-2021, 08:23 AM   #16
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Default Re: Miller-style cylinder head

Finally took some time to finish the top machining.


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Old 10-06-2021, 08:36 PM   #17
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Looking good.
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Old 10-13-2021, 11:03 AM   #18
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Default Re: Miller-style cylinder head

Fascinating project! Thank you..
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Old 02-23-2022, 05:20 PM   #19
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Default Re: Miller-style cylinder head

Good news on the new cylinder head. Today the first sample was test run and things went well. It was run using a used gasket, so the next test is with a new gasket and then it will be dyno tested.



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Old 02-27-2022, 07:40 AM   #20
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Default Re: Miller-style cylinder head

Hi Tod,
Is there a reason why the radius of the valve pocket area doesn't match the radius of the gasket?
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