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How widespread is the Castech head crack?

How widespread is the Castech head crack?

Postby jutgin [OP] » Jan 01 2012, 3:55am

I just wonder how big of a problem this has been since there must be 10's of thousands of these motors out there.
I guess I am just concerned since I just bought one with the 706 casting.
Should I nip it in the bud and go ahead and replace the heads now?
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jutgin
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Re: How widespread is the Castech head crack?

Postby jutgin [OP] » Jan 01 2012, 10:51pm

Probably not a very popular subject!
I do have another question that may be easier to answer/talk about.
Are all the 706 heads made by Castech? Or is that why you have to look inside to see the Castech marking?
I know I have the 706 cause I can see it clearly on the outside of the head passenger side.
Original Poster
jutgin
Newbie
Newbie
Posts: 8
Topics: 4
Joined: Dec 31 2011, 4:04am
Years of membership: 2 years of membership2 years of membership
Year: 2006
Make/Model: Chevrolet Silverado
Extra Info: 5.3 4x4
Group Membership:
Registered users

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