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I think we need a new motor... 2008 Z06 LS7

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Old 01-28-2012, 11:11 PM
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Default I think we need a new motor... 2008 Z06 LS7
Well i have a friends car here with a broken LS7. Figured i'd post a few pictures for everyones enjoyment... If anyone has any long blocks for sale or suggestions please feel free to let me know.


Mods installed 500 miles ago (heads werent touched):
Calloway intake
Ragin Racin Lethal Z cam
Kooks Long tubes
Thanks...
Attached Thumbnails I think we need a new motor... 2008 Z06 LS7-imag0714.jpg  
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Old 01-28-2012, 11:15 PM
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Attached Thumbnails I think we need a new motor... 2008 Z06 LS7-imag0747.jpg   I think we need a new motor... 2008 Z06 LS7-imag0749.jpg   I think we need a new motor... 2008 Z06 LS7-imag0752.jpg  
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Old 01-28-2012, 11:20 PM
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Look in the picture of the piston. Bottom left coolant passage you can see the crack in the block.
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Old 01-29-2012, 06:40 AM
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What happened? Exhaust valve broke? I have a ls7 in my 08 z06 has 5855 miles on it id be willing to sell to fund an RSH block.
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Old 01-29-2012, 08:06 AM
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Originally Posted by TraMotorsports
Well i have a friends car here with a broken LS7. Figured i'd post a few pictures for everyones enjoyment... If anyone has any long blocks for sale or suggestions please feel free to let me know.


Mods installed 500 miles ago (heads werent touched):
Calloway intake
Ragin Racin Lethal Z cam
Kooks Long tubes
Thanks...
I have a forged LS7 441 shortblock with coated Wiseco that's never been fired if interested? Only thing needed would be an oil pan and heads!
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Old 01-29-2012, 08:14 AM
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Yeah. Thinking that 2 piece exhaust valve came apart. If both of you guys could send me some pics and details and prices of what you're willing to offer I can present it to the owner of the car so we can move forward with this.

Thanks
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Old 01-29-2012, 05:22 PM
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Can you post more pictures of the block as it is disassembled further? Might be able to be repaired and sleeved. Would be a lot stronger than a new LS7 block
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Old 01-29-2012, 06:02 PM
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The cracked block can be repaired? Please fill me in.
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Old 01-29-2012, 06:22 PM
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JB WELD is your friend
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Old 01-29-2012, 07:04 PM
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Originally Posted by kingd_202
JB WELD is your friend
Or Duct tape
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Old 01-30-2012, 09:00 PM
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RED or ERL can resleeve it depending on the damage.
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Old 01-30-2012, 09:40 PM
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Default LS7 repair
I can usually weld up the block and install Darton Seal Tight dry liners. I have four cracked LS7 blocks here for repair with similar damage.

Worst case would be MID if the damage is too great for the block to be successfully welded.

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Old 02-01-2012, 10:09 PM
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One of my customers just lost a LS7 to a overcammed motor. .680 lift can only go so far. Lost an exhaust spring at the track and then it dropped an exhaust valve. The only thing that survived was the Jesel rockers....
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Old 02-06-2012, 09:28 PM
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looks like that is truly a lethal CAM

Originally Posted by TraMotorsports
Well i have a friends car here with a broken LS7. Figured i'd post a few pictures for everyones enjoyment... If anyone has any long blocks for sale or suggestions please feel free to let me know.


Mods installed 500 miles ago (heads werent touched):
Calloway intake
Ragin Racin Lethal Z cam
Kooks Long tubes
Thanks...
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Old 02-07-2012, 09:32 AM
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damn talk about eating a valve
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