DIF casting bad block???
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DIF casting bad block???
I have heard ALOT about the pre '77 MCC block if very prone to cracking ion the lifer valley. I have also heard that the CF casting is fine, but I have heard nothing about the DIF casting. Is this block prone to cracking or this block OK like the CF casting.
I am getting ready to rebuild and "beef up"
my 400 that has the DIF casting and I don't want to toss a bunch of money into it if I am going to have problems with it.
Thanks for the help
I am getting ready to rebuild and "beef up"
my 400 that has the DIF casting and I don't want to toss a bunch of money into it if I am going to have problems with it.Thanks for the help
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Junior User
Joined: Mar 2003
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There are a bunch of posts about the MCC block cracking, do a search on this webpage and search for MCC there are alot of them.
<!also projectbronco has a article about it here >
<!http://www.projectbronco.com/Technical_Articles/Dispelling_the_rumors.htm>
<!also projectbronco has a article about it here >
<!http://www.projectbronco.com/Technical_Articles/Dispelling_the_rumors.htm>
Posting Guru
Joined: Mar 2002
Posts: 2,070
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From: Boise, Idaho
I've been noticing that my Cleveland block has lots of X's and Y's cast into the lifter valley. I suspect that this was an attempt to 'fix' the cracking tendency. Either that or the Ford gene pool is turning girly. 
I can post a picture to my gallery if anybody is interested in seeing these X's and Y's.
I can post a picture to my gallery if anybody is interested in seeing these X's and Y's.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
That'd be interesting to see. I thought the problem was only on early MCC M-blocks, not clevelands...did they just start casting those on there to be safe?
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Posting Guru
Joined: Mar 2002
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From: Boise, Idaho
This Cleveland is from Australia so it could be from the later 70's. I'll try to get that up tonight.
Edit: Ok, I think I have them in there. I took a picture of the date code. I think it's from 1977.
Edit: Ok, I think I have them in there. I took a picture of the date code. I think it's from 1977.
Last edited by pcmenten; Apr 29, 2004 at 02:04 AM.
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