Can I use these heads?
08-22-2012, 09:34 AM
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Can I use these heads?
I bought some Dart Eagle Iron BBC heads from an OSO member and discovered two of the heads have a holes leading from the exhaust runner into the head bolt cavity. The heads were unported so this was caused by corrosion. Is it okay to run these or should I be looking for some new castings?
http://i534.photobucket.com/albums/e...IMAG0271-1.jpg
http://i534.photobucket.com/albums/e...IMAG0271-1.jpg
08-22-2012, 10:22 AM
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about 15yrs ago i had a set of heads that iwas porting for one of my drag cars.i put a hole in the exhaust port hear where your crack is,they were not gm heads,but cast iron.my engine guy sent the head to a guy that gas welded them.he stuck the whole head in a industral oven and heated the head red.took it out and made the repair and slowly backed the heat down.i was told this was a all day deal.the patch heald.check w/your motor guys.i am sure they have some body that does this sort of repair.
08-22-2012, 12:00 PM
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They would be on the way back to who sold them to me or to the recycling bin. One or the other.
08-22-2012, 01:08 PM
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If the seller wont take them back, I think I would call in a professional for evaluation on the repair procedure and cost. Those heads (new) are only about $1800 with good valves and springs. Dont get to upside down in them.
08-22-2012, 02:35 PM
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Ok, thanks for the responses. I'm not bashing the seller, he is working with me to fix it. Just wanted to make sure I wasn't being unreasonable about not wanting to use them.
08-22-2012, 10:21 PM
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ive ran heads like that alot but only on race car motors .had no problem.
the hole goes through the head bolt hole when porting , but if its from corrosion i would be afraid of where the next hole is going to be. hope you get your $ back.
the hole goes through the head bolt hole when porting , but if its from corrosion i would be afraid of where the next hole is going to be. hope you get your $ back.
08-24-2012, 01:45 AM
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I had a set of those heads with the same problem in one exhaust ports. My machinist opened up the head bolt hole by drilling it out and pressed a sleeve into it. Worked great! There was a small "bump" in the port from the sleeve but Imo was very minimal and it did fix the problem.
