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Cracked block by head bolt hole.......

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Old Aug 10, 2008 | 08:37 PM
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Default Cracked block by head bolt hole.......

http://i51.photobucket.com/albums/f3...GTP/Crack1.jpg
http://i51.photobucket.com/albums/f3...GTP/Crack2.jpg

This must have happened when the previous owner swapped heads. It looks like the classic 'fluid in the bolt-hole' type of crack. The heads were swapped about 11K miles ago, so everything has been fine since this happened apparently. Maybe I was just running on borrowed time though...

I'm in the middle of a H/C swap and noticed this when I was about to upgrade the motor mounts.
I'll be running 11.8:1 static CR with the new setup.
I WAS running 11.1:1 and things were fine.

Im debating on pretending that I didnt even see it...

****.
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Old Aug 10, 2008 | 09:07 PM
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i dont think changing the compression ratio .7 will mess it up any more...im not positive though...if it aint broke (and you dont notice it) dont fix it!!!
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Old Aug 10, 2008 | 09:22 PM
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If it was me , i would run head studs with a lot of loctite on them,They screw in hand tight and then the torque is applied to the heads with out the twisting factor of the head bolts that can stress the loose threads from the crack . just a idea to think about
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Old Aug 10, 2008 | 09:40 PM
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ahhh, this is bad. I hope my head gasket swap was better than his...
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Old Aug 10, 2008 | 11:38 PM
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Thats a tough call, I think what randy suggested is your best bet.
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Old Aug 11, 2008 | 05:39 PM
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Originally Posted by Haans249
Thats a tough call, I think what randy suggested is your best bet.
Yeah, I think so too.

I guess I'll be selling that set of ARP head bolts I just bought a couple weeks ago....

Thanks for the tips!
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Old Aug 11, 2008 | 07:49 PM
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I'd have someone with a tig welder hit the area up. But if you're saying you have been driving around fine....then maybe just pray? haha....
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Old Aug 11, 2008 | 07:51 PM
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sooner or later its gonna go. maybe tig welding it up by a very very good welder would fix it pretty good
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Old Aug 11, 2008 | 08:54 PM
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This is no big deal had the same issue on a 383 high 9 sec drag car zero issues you'll be fine.
As stated above head studs.
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Old Aug 12, 2008 | 12:10 AM
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Originally Posted by Sunset01TA
This is no big deal had the same issue on a 383 high 9 sec drag car zero issues you'll be fine.
As stated above head studs.
Haha... sorry guys. Sunset01TA's response trumps all of yours.

Head studs it is.....
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Old Aug 12, 2008 | 12:15 AM
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Originally Posted by NVR_ENUF
Yeah, I think so too.

I guess I'll be selling that set of ARP head bolts I just bought a couple weeks ago....

Thanks for the tips!
are u selling th ARP head bolts? if so im interested..
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Old Aug 12, 2008 | 11:48 AM
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Originally Posted by $O$OE
are u selling th ARP head bolts? if so im interested..
Yeah... I'll send you a PM when I get home from work.
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