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Hot Topic (More than 10 Replies) Aluminum head (Read 2361 times)
 
Brian M
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Aluminum head
10/26/17 at 12:09:26
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Hi, I thought people might be interested to see this, from what I hear it is quite rare. I havenít got to run it yet but hopefully soon.
« Last Edit: 01/23/18 at 12:01:55 by johnrb3b »  

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RICKG
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Re: Aluminum head
Reply #1 - 10/26/17 at 12:42:10
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WHERE IN TH HECK DID YOU FIND THAT???
Very cool, what's the lettering spell out?
  

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Brian M
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Re: Aluminum head
Reply #2 - 10/26/17 at 14:00:12
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Itís a Brian Chuchua head, Chuchua is what the lettering says. I got it 20 years ago from a guy I worked with, I thought it was cool so I bought it for $100. Recently I found out it is a high compression head so I dug it out and fixed it up and decided to put it on while Iím fixing a bunch of other stuff. Should go well with my Clifford cam and header, the 32/26 Weber and distributor recurve.
  
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mtnman37879
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Re: Aluminum head
Reply #3 - 10/26/17 at 23:25:31
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That is just tooo coool! Vintage speed parts rock!
  

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Holdmybeer
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Re: Aluminum head
Reply #4 - 01/16/18 at 17:54:41
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There is no sufficiently superlative term to describe the coolness of this head!
You Yankees have all the fun toys.
  

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Brian M
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Re: Aluminum head
Reply #5 - 01/23/18 at 02:15:23
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It is pretty cool, I have it all running now and it seems to work well. It runs very well down the freeway, had the needle off the end today getting in front of a semi. Itís hard to say if itís just the head though, I did a few other things that probably helped too.
  
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johnrb3b
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Re: Aluminum head
Reply #6 - 01/23/18 at 11:59:51
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More, more.
Tell us more.
And pictures.

Also, I assume that head was sand cast. So where is the pattern????
Someone could make more if he had the pattern.
« Last Edit: 01/23/18 at 12:03:34 by johnrb3b »  

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Brian M
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Re: Aluminum head
Reply #7 - 02/01/18 at 01:46:43
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I donít really have much info, Vic Hickey originally designed them and then Brian Chuchua continued on with them, as for a pattern or mold Iím sure they are long gone, this head was probably built 50-60 years ago. Iím thinking about starting a build thread about the work Iíve done and things that will be coming, maybe some people would be interested.
  
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Holdmybeer
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Re: Aluminum head
Reply #8 - 04/01/18 at 12:27:54
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I am totslly interested.  In fact, Ive been meaning to drive the west coast highway soon with my partner.  Maybe we could stop by for a visit?
  

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Brian M
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Re: Aluminum head
Reply #9 - 04/24/18 at 01:43:02
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That could be fun, let me know if you make it down this way.
  
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Brian M
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Re: Aluminum head
Reply #10 - 04/24/18 at 01:49:24
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Iíve driven the Jeep 1,000 miles now. Had a problem about 400 miles in, burnt a valve. I thought it was running lean so I installed a wideband sensor to tell for sure and for the most part I really wasnít. I actually think the spark plugs were too long, I was running 1/2Ē reach plugs but with the higher lift cam I actually had 2 spark plugs barely touching the valves and I think it was causing the problem, I pulled it back apart and fixed the valve and also went back the 3/8 plugs and so far no problem. Iíve been messing with the jetting quite a bit but needed more air correction jets for the Weber so Iím currently waiting on those. I will say the Jeep is a goer though, at least for an old Jeep flathead.
  
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aboyandhisdog
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Re: Aluminum head
Reply #11 - 04/24/18 at 12:40:43
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Well, you can usually rely on me for a dumb question. Huh  What are the symptoms of a burned valve?  What problems were you having?

Also, which Weber carb. do you have and will it bolt right up to the stock Willys intake manifold?  Is it an option to the WO or the Solex for us?

Thanks!
  

Tom

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Steve R
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Re: Aluminum head
Reply #12 - 04/24/18 at 19:02:03
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I "second that emotion" as they used to say. Tell us more. Many of us want to keep the old engine but want more power. At least 20 or so HP..
  
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Brian M
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Re: Aluminum head
Reply #13 - 04/26/18 at 02:18:55
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aboyandhisdog wrote on 04/24/18 at 12:40:43:
Well, you can usually rely on me for a dumb question. Huh† What are the symptoms of a burned valve?† What problems were you having?

Also, which Weber carb. do you have and will it bolt right up to the stock Willys intake manifold?† Is it an option to the WO or the Solex for us?



Thanks!

The burnt valve started out as a small miss that I couldnít get to adjust out with the idle mix screw, eventually it got worse until you could feel the Jeep actually moving up and down. At that point I started pulling plug wires while it ran and found out #1 cylinder wasnít doing much work, the exhaust valve was leaking.

I run a 32/36 Weber. You can buy a kit that is for the Jeep that has an adapter to fit the stock manifold but I thought it was pretty cheesy so I built a new manifold.
« Last Edit: 04/26/18 at 02:21:52 by Brian M »  

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Brian M
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Re: Aluminum head
Reply #14 - 04/26/18 at 02:25:10
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Steve R wrote on 04/24/18 at 19:02:03:
I "second that emotion" as they used to say. Tell us more. Many of us want to keep the old engine but want more power. At least 20 or so HP..


Iím not sure you can get 20hp even with what Iíve done, I saw a guy dyno his Jeep with and without another head like mine and he went from 40-47, thatís probably the biggest gain you will get.
  
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