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Posted by Marty on Tuesday, June 17, 2008 at 18:32:46 :
In Reply to: Re: never seen a 12 valve with cracking problem posted by Ralph in NY on Monday, June 16, 2008 at 21:46:45 :
The 12V "53" blocks are very rare...not many to be seen. For a long time people weren't even sure if they came in the pre 98.5 trucks but some did & they do crack from time to time.
Lots of people have them & have never had an issue but if I had a choice...I'd steer clear.