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Aftermarket Deere head?


 
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clampdaddy
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PostPosted: Tue Jan 15, 2013 7:42 am    Post subject: Aftermarket Deere head? Reply to specific post Reply with quote

I've been saving up for a while so I can do a few mods to my '48 model A all at one time. I'm getting real close now and was wondering if it would be more cost effective to buy an aftermarket head or just have the factory head worked over. I'm not going with a big cube motor. Stock stroke and .125 overbore gas pistons. Is an $1800 head going to make more power than a reworked factory head on a small cube motor?
 
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GoJDpuller
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PostPosted: Tue Jan 15, 2013 9:04 am    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

No to the after market head
 
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Early B
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PostPosted: Tue Jan 15, 2013 9:10 am    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

We have a late A thats all stock except .125 over w/ the head &
manifold worked over & a hot mag . It runs pretty good for what
it is.We pull 4500-6000lb 2nd gear w/13.6s no problem
 
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Sadowsky
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PostPosted: Tue Jan 15, 2013 10:16 am    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

GoJDpuller wrote:
(quoted from post at 12:04:11 01/15/13) No to the after market head


What he said ^^^. That head is way overkill for anything other than gigantic cubes.
 
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Josh Blackburn
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PostPosted: Tue Jan 15, 2013 12:02 pm    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

9 by 6.125 A with cyclone head making 99 hp. Your head
with 600 put in it will flow all the air you need. Put the other
1200 into a big journal 9 inch crank
 
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clampdaddy
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PostPosted: Tue Jan 15, 2013 9:11 pm    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

Thanks fellas.
 
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bill bo
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PostPosted: Wed Jan 16, 2013 4:45 am    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

I agree, the Murphy head is way to big.
 
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Michael Bay
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PostPosted: Wed Jan 16, 2013 6:16 am    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

Ill let you know... going with the extreme tractor parts head on my 51" puller. raise the compression a bit and let a little more flow. had a stock 51" head shave a 1/4 inch on it when we bought tractor and it didnt work.
Also, like to get josh"s number to see about carb work.
 
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clampdaddy
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PostPosted: Thu Jan 17, 2013 8:43 pm    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

Michael Bay wrote:
(quoted from post at 15:16:25 01/16/13) Ill let you know... going with the extreme tractor parts head on my 51" puller. raise the compression a bit and let a little more flow. had a stock 51" head shave a 1/4 inch on it when we bought tractor and it didnt work.
Also, like to get josh"s number to see about carb work.


That's the head I was thinking about. My e mail is always open so let me know how it works out for you. When you say that you shaved the factory head and "it didn't work", what do you mean? Not the compression gains that you had hoped for?
 
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Michael Bay
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PostPosted: Sat Jan 19, 2013 6:31 am    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

Not enough compression for are liking and even
though a lot of people say head work doesn"t matter
it does.
 
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JLO
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PostPosted: Tue Jan 22, 2013 5:23 pm    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

we have a head that is ported polished and has big valves. we are not pulling Deeres anymore and would sell this one
 
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clampdaddy
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PostPosted: Tue Jan 22, 2013 8:19 pm    Post subject: Re: Aftermarket Deere head? Reply to specific post Reply with quote

jlo wrote:
(quoted from post at 02:23:13 01/23/13) we have a head that is ported polished and has big valves. we are not pulling Deeres anymore and would sell this one


Milled? How far? Who did the work? What are you asking?
 


Last edited by clampdaddy on Tue Jan 22, 2013 8:20 pm; edited 1 time in total
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