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Joined: Mar 2011
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Backyard Mechanic
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OP
Backyard Mechanic
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Posts: 229 |
Does anyone know where I can find a good 31 chev cylinder head? "Good" meaning is has been verified that there are no cracks.
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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That is about as rare as a bull with wings. At any rate, check with Don Rossi in Colorado. He did have some good cylinder heads. No doubt the cylinder head will be very expensive if you do find one. Good luck!   
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Mar 2004
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Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Mar 2004
Posts: 129 |
several years ago a friend had a cracked head from a 1939 mercedes supercharged straight eight repaired at a shop that specialized in diesel repair. it wasn't cheap, but one of those heads is unreplaceable. it worked very well. is that work still done anywhere?
they don't make em like they usedta
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Joined: Mar 2007
Posts: 104
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Mar 2007
Posts: 104 |
I took mine to the local napa machine shop. It had three cracks. They sent it to a shop in Atlanta that specialized in this kind of repair. It cost me $500 for the repair and to rework the head. It's run for a year now with no problems.
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Joined: Nov 2006
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ChatMaster - 2,000
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May be Grady Cox could have some 31 heads? 
Solan G, # 32797
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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May be Grady Cox could have some 31 heads? I would suggest that you don't go there.
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Dec 2002
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Oil Can Mechanic
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Oil Can Mechanic
Joined: Dec 2002
Posts: 597 |
Ashame that someone doesn't make a run of these heads, as they always seem to be a problem.
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: May 2003
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Backyard Mechanic
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Backyard Mechanic
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Are the 1930 and 1931 cylinder heads the same?
karl
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ChatMaster - 1,500
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Took mine to the local National Bushing 3 yrs ago where they boiled out the head, fluxed, & welded a small crack by one of the seats. Working fine so far and I still have the good '29 head that was on the motor for emergency replacement.
I think I'm a fairly wise person because I'm smart enough to realise I'm not too bright.
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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Are the 1930 and 1931 cylinder heads the same? Yes. Do you have a 1929-32 Chevrolet parts book?
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: May 2003
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Backyard Mechanic
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Backyard Mechanic
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Thanks. My parts book is dated August 1931, but the listing for the cylinder head doesn't specify year.
karl
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1930 and 1931 heads are the same as J Y DOG has stated. 1929 head has different valves fitted, unique to 1929 only. 1932 head has different valves and rocker arm assemblies and they mount in a different position to increase the rocker arm ratio.
JACK
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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My parts book is dated August 1931, but the listing for the cylinder head doesn't specify year. Yep, it sure does! I have the same parts book, and on page 2 of the August 1931 edition it specifies that the cylinder head fits both the 1930 and 1931 models.
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: May 2003
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Backyard Mechanic
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Backyard Mechanic
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Guess I didn't take time to read it correctly. Thanks
karl
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