FS: Rajo 4 valve head

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Wreckrod
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First Name: Seth
Last Name: Spratlin
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FS: Rajo 4 valve head

Post by Wreckrod » Mon Sep 30, 2019 4:39 pm

I really like the way my speedster runs with this head, but family issues dictate that I need the $ from it more than the head itself. When things settle down in the future I’ll get another one.

For sale is an aluminum Rajo 4 valve head, taken off of a speedster that runs like a scalded dog. No cracks, no leaks, no issues, again, I just need the money. Please feel free to ask questions. Has 1 piece rocker arm so that towers don’t move. No valve covers, just the mechanical oilers up top. Grooves in top of rocker arm distribute oil to the rockers.

Asking $4,000 plus shipping, but I’ve gotta move it so make me an offer. Head has all bolts and parts, throw it on your car and bolt up an intake and you’re in business.
Attachments
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Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Wed Oct 02, 2019 9:37 am

Price reduced to $3,900! Really need to move this. Add some zoom to your T!


Henry K. Lee
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Re: FS: Rajo 4 valve head

Post by Henry K. Lee » Wed Oct 02, 2019 9:50 am

Do you have the carburetor and intake for it?

Hank


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Wed Oct 02, 2019 2:37 pm

I have a dual intake with a matching pair of U&J carbs that I could add to sweeten the deal, but that would drive the price up another $1,100.

If I include the intake and the two carbs, I’d ask $5,000 plus shipping.
Attachments
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DustySpokes
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Re: FS: Rajo 4 valve head

Post by DustySpokes » Wed Oct 02, 2019 9:17 pm

Whooaa ! That is a pretty potent carb setup !


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Thu Oct 03, 2019 9:37 am

DustySpokes wrote:
Wed Oct 02, 2019 9:17 pm
Whooaa ! That is a pretty potent carb setup !
Thanks, really need to move this.

$4,900 new price for head, intake and carbs, will come with linkage, bolt on and go.

New price for just the head: $3,800.


csnailnrun
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Re: FS: Rajo 4 valve head

Post by csnailnrun » Thu Oct 03, 2019 10:13 am

This was a well running machine! I was lucky to ride with Seth in the spring. Fun and fast!


Henry K. Lee
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Re: FS: Rajo 4 valve head

Post by Henry K. Lee » Thu Oct 03, 2019 11:48 am

Do you have the valve covers? Leaving the exposed to road dust on the top might cause some issues.

Hank


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Thu Oct 03, 2019 1:41 pm

Henry K. Lee wrote:
Thu Oct 03, 2019 11:48 am
Do you have the valve covers? Leaving the exposed to road dust on the top might cause some issues.

Hank
No valve covers, I had some years ago but another gentleman purchased those from me. I’ve had this head on my speedster and done all kinds of off-roading, but I’ve never had any issues with dirt or dust. I just keep the oilers full and flowing.


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Fri Oct 04, 2019 11:50 am

Gotta move this thing.

New price for head: $3,700

Head AND intake with carbs: $4,900

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dykker5502
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Re: FS: Rajo 4 valve head

Post by dykker5502 » Sat Oct 05, 2019 3:15 pm

Do you have any idea what performance the engine have in horsepowers?
Ford Model T 1921 Roadster Pick-up
Ford Model T 1922 Fordor (danish build body)
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Loved Model Ts since 1970 - owned one since 2007.


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Sat Oct 05, 2019 4:01 pm

dykker5502 wrote:
Sat Oct 05, 2019 3:15 pm
Do you have any idea what performance the engine have in horsepowers?
It will depend on what cam you run, what exhaust, and whether you run this intake and carb setup I have or something different.

I would guess the head by itself is worth a good 20-25. Dual exhaust or a big header and tube are probably worth 3-4 more, and dual carbs worth something like 7 or 8. Altogether, probably 35 or so horsepower more, on top of your base 20. 55 total horses is probably about right, or at least in the ballpark.

In my speedster with this setup I have enough acceleration that I can keep up with modern traffic without slowing anyone down. If I didn’t really really need the money this wouldn’t be for sale.

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dobro1956
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Re: FS: Rajo 4 valve head

Post by dobro1956 » Sat Oct 05, 2019 5:06 pm

This is a very good deal for a basically "bolt on 4 valve head" Most need lots of work. I spent a lot of time and a lot more money getting my 4 valve head ready to go. The U&J carbs are considered one of the better "zoom-zoom" carbs and then to have two of them :) :). This setup on Seth's car was a beast..... Hate to see you selling it. but family comes first.

As far as I know the Rajo 4 valve is the only OHV head that fits with no modifications to the firewall of a stock T.


art32mor
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Re: FS: Rajo 4 valve head

Post by art32mor » Sat Oct 05, 2019 8:46 pm

Seth this an orginal Australian repop?


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Sun Oct 06, 2019 10:51 am

art32mor wrote:
Sat Oct 05, 2019 8:46 pm
Seth this an orginal Australian repop?
This is an aluminum head and my understanding is that it’s an older reproduction. As to whether it came from Australia originally, I have no idea.


art32mor
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Re: FS: Rajo 4 valve head

Post by art32mor » Sun Oct 06, 2019 11:40 pm

Australian heads where cast iron
Might been some aluminum ones dont know thanks i gonna pass
Good luck on the sale been there many times iver the years


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Mon Oct 07, 2019 4:49 pm

Gotta move this thing.

New price for head: $3,600

Head AND intake with carbs: $4,800

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BobD
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Re: FS: Rajo 4 valve head

Post by BobD » Mon Oct 07, 2019 6:32 pm

Nice looking head. Any idea of the compression ratio? Would one need to run a water pump with this setup?

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dobro1956
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Re: FS: Rajo 4 valve head

Post by dobro1956 » Mon Oct 07, 2019 11:51 pm

Before I bought my 4 valve head I did a lot of research into them and the stories of bad repro heads. I came to the conclusion that the Australian repro heads were good heads. The Australian heads were cast in cast iron and also aluminum. As far as I could find out , all original 4 valve heads are cast iron. I could never find a person who said that one of the heads that actually was made by the man in Australia was bad. There were shipping issues, people not receiving heads, ect., but no bad heads. The bad heads seems to be the ones that were made in California by the "second generation" builder who bought the rights and patterns from the Australian builder. There are stories of the head bolt holes not lining up, rocker towers being located where the rockers just barely caught the valve stems, poor castings and other things. From my research I think those heads were never meant to be sold. They may have been mistakes, that were thrown in the scrap bin, that were either stolen or taken home by workers, with the idea to repair them for their own use. (or.???) Those heads somehow ended up back on the market thru estates, swap meets, or ????. So the good repro 4 valve heads tend to have an unearned bad rep...

The head Seth has for sale is not one of those "bad heads" his head is a tested and ran head with none of those issues.

I wish I had found a deal like this before I spent a lot of time and money on getting my 4 valve head ready to go.

I have no dog in this fight. It just happens that Seth and I were both buying and setting up our 4 valve heads about the same time. So I know how much time and effort as well as expense went into setting up the head as well as his carb setup...


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Tue Oct 08, 2019 2:55 am

BobD wrote:
Mon Oct 07, 2019 6:32 pm
Nice looking head. Any idea of the compression ratio? Would one need to run a water pump with this setup?
Bob the compression is probably pretty similar to a stock T low head. The combustion chamber isn’t small, but it cuts out the whole area where the intake valve would normally be. I ran mine with domed pistons, and my T had as much or more compression as any one I’ve ever tried to hand crank. Just going by “feel” compared to known T’s, with domed pistons I was probably around 6 to 1.

No need for a water pump, my speedster ran fine without it and never overheated. Just had a clean block and decent rad.


Henry K. Lee
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Re: FS: Rajo 4 valve head

Post by Henry K. Lee » Tue Oct 08, 2019 8:22 am

Seth those are running around 6:5 to 7:00 to 1 with domed pistons. Nice torque for sure.

Hank


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Sun Oct 13, 2019 1:27 pm

Gotta move this thing.

New price for head: $3,500

Head AND intake with carbs: $4,700


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Tue Oct 15, 2019 8:42 pm

Bump


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Fri Oct 18, 2019 10:35 am

Gotta move this thing.

New price for head: $3,400

Head AND intake with carbs: $4,600


Topic author
Wreckrod
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Re: FS: Rajo 4 valve head

Post by Wreckrod » Mon Oct 21, 2019 8:57 am

Bump

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