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Aluminum High Compression Low Head Details
Posted: Sat Feb 19, 2022 5:55 pm
by David Greenlees
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Looking for any details about any of the the aluminum high-compression low heads that have been on the market place over the last 50 or so years. Details and photos of these heads are hard to find, other than it has been reported that the most recents ones manufactured are said to have a 6.0:1 compression ratio.
I'm looking for photos of the combustion chambers of any one of these heads which have been manufactured recently.
Re: Aluminum High Compression Low Head Details
Posted: Sat Feb 19, 2022 6:34 pm
by Kevin Pharis
Here’s a recent discussion bout the Reeder and similar heads;
viewtopic.php?f=2&t=26284&p=202121#p202121
Re: Aluminum High Compression Low Head Details
Posted: Sat Feb 19, 2022 7:00 pm
by TRDxB2
Here is a comprehensive comparison of several heads done in 2011 I believe
http://mtfctulsa.com/Tech/heads.htm
You'll need to navigate through several pages to see it all
Re: Aluminum High Compression Low Head Details
Posted: Sun Feb 20, 2022 6:48 am
by David Greenlees
Kevin Pharis
TRDxB2
Thanks for the links, I appreciate it.
Re: Aluminum High Compression Low Head Details
Posted: Mon Mar 07, 2022 11:54 pm
by Kevin Pharis
After pondering how to build a new Winfield head for several years, a little inspiration and curiosity yields something very similar to a Green. Better pics, or better yet measurements, and a little more patience could get a design that’s really close to an original...
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 8:38 am
by David Greenlees
Kevin Pharis wrote: ↑Mon Mar 07, 2022 11:54 pm
After pondering how to build a new Winfield head for several years, a little inspiration and curiosity yields something very similar to a Green. Better pics, or better yet measurements, and a little more patience could get a design that’s really close to an original...
949B7AA3-7F9A-41E1-A750-F1919772B65A.jpeg
Very nice work! Have you ever gotten involved with casting something like this? After having recast and machined several pre-WW1 engine blocks recently, the old-fashioned way with wooden patterns - modern cad design and core printing is the way I would do it from now on.
Have you even been involved with a casting with printed cores? Any chance you might may do a Winfield head? I've been thinking of talking with friend Lee Stohr at
https://www.stohrdesign.com/ about doing a Green head if I decide to go down that road.
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 9:50 am
by Kevin Pharis
Have done a couple complete 3D printed sand molds. Here is my dual Winfield manifold project
viewtopic.php?f=2&t=22568&p=197051#p197051
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 10:04 am
by Harry Lillo
Perhaps another option would be an original, never used Winfield head from the day the racer was shaking up the racing world?
It is interesting that Winfield never cast a water inlet in his head. He used two inlets on top of the head with a manifold arrangement
similar to an exhaust header to transfer coolant. I expect it reduced the water capacity in the head, but provided more equal cooling.
Harry
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 10:45 am
by Kevin Pharis
Harry Lillo wrote: ↑Tue Mar 08, 2022 10:04 am
Perhaps another option would be an original, never used Winfield head from the day the racer was shaking up the racing world?
Harry
Let’s see this mythical creature...
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 11:27 am
by Art M
Has the head design of the Hudson flat head six cylinder head from the early 1950's been studied. These cars were beating the rocket 88 Oldsmobiles in the stock car races. In the late 1980's I worked with the engineer who had worked on this Hudson engine. I wasn't smart enough to ask him about details. He passed away in 1993.
Art Mirtes
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 11:31 am
by Harry Lillo
Kevin,
I am in Panama right now so don't have ready access to get you pictures.
I purchased it a quite a number of years ago from another collector.
When I get home next month I will get you some pictures.
Harry
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 12:10 pm
by Les Schubert
https://www.youtube.com/watch?v=T29HFhrbT_s
Some ideas presented here could be of interest? I hope it can be watched
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 12:32 pm
by Kevin Pharis
As close as I’ve ever been to a real Winfield...
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 3:50 pm
by Les Schubert
Re: Aluminum High Compression Low Head Details
Posted: Tue Mar 08, 2022 5:20 pm
by Harry Lillo
Kevin,
That looks like the brother to my unicorn!!
Harry
Re: Aluminum High Compression Low Head Details
Posted: Wed Mar 09, 2022 1:23 pm
by David Greenlees
Nice work, this is the way to do it today if you can. Saves a lot of work and the end product is superior to doing it the old fashioned way.
Not T related, but below is the most complex casting I've done to date. A new cast iron cylinder block for this 1915 Duesenberg racing car 300 CI OHV 16-valve four. More info and photos @
https://theoldmotor.com/?p=157435 and
https://theoldmotor.com/?p=20330
