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.


Tod

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.

Tod

Re: Miller-style cylinder head
 

Which style/size of spark plugs are you planning for your design?

Re: Miller-style cylinder head
 

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


Good question.



Tod

Re: Miller-style cylinder head
 

The first sample cores assembled and ready for the foundry.


Tod

Re: Miller-style cylinder head
 

Very nice work! Looking good

Re: Miller-style cylinder head
 

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


Tod

Re: Miller-style cylinder head
 

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


Tod

Re: Miller-style cylinder head
 

https://www.fordbarn.com/forum/attac...p;d=1624361022

https://www.fordbarn.com/forum/attac...p;d=1624723411
Miller-style Cylinder Head - nice.

Re: Miller-style cylinder head
 

Interesting project! Any progress since your last post?

Re: Miller-style cylinder head
 

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.


Tod

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.)?

Re: Miller-style cylinder head
 

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



Tod

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.

Re: Miller-style cylinder head
 

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


Tod

Re: Miller-style cylinder head
 

Finally took some time to finish the top machining.


Tod

Re: Miller-style cylinder head
 

https://www.fordbarn.com/forum/attac...p;d=1633526578

https://www.fordbarn.com/forum/attac...p;d=1631135911

https://www.fordbarn.com/forum/attac...p;d=1631135929
Looking good.

Re: Miller-style cylinder head
 

Fascinating project! Thank you..

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.



Tod

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?

Re: Miller-style cylinder head
 

Taking the chamber out to that gasket would reduce compression ratio. The aim is to get 6.25:1.


Tod

Re: Miller-style cylinder head
 

It would appear I am in need of someone to test one of these heads and dyno it if possible.


Tod

Re: Miller-style cylinder head
 

I like Miller for the name!!

Re: Miller-style cylinder head
 

I would be interested in one of those heads. Is it aluminum? Will it come with a head gasket?

Re: Miller-style cylinder head
 

Tod,

Also, what is the availability for the Miller heads?

Re: Miller-style cylinder head
 

These heads will be iron, at first. I have not planned on selling gaskets with them.



Tod

Re: Miller-style cylinder head
 

I will be making a few more prototypes soon, for additional testing and dyno, and then into production.


Tod

Re: Miller-style cylinder head
 

Hi Tod,

I would be interested in purchasing one if you’ve got one for a 1929 Model A. Right now I’m running a milled stock head with a custom intake. I already purchased a cast aluminum Equalizer so this new head should increase the HP a bit. Do you think you’ll have something available before TROG (in Wildwood) this year?

Pete

Re: Miller-style cylinder head
 

Pete,


These are for Model T only. I have other heads for Model A's but I am having trouble getting castings due to my core shop working almost 24 hours a day and my foundries are 8 months backlogged.


Tod