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Thread: Comp 918 failure caused #6 piston to disenegrate :(

  1. 10-27-2010 06:25 AM #21
    11 6.2's Avatar
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    581/588 the springs r supposed to be good to 600...
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  2. 10-27-2010 12:09 PM #22
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    chevyboy.520 is offline Senior Member
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    Damn dude! Sorry to hear the bad news! Makes me want to change out my springs, (PAC) but they have about 20k on them!
    chevyboy.520
    06 ecsb 5.3, FAST LsxRT 102, FTI cam! LT's, tru dual, magnaflow, 3400 stall, Performabuilt lvl2, 4.10s!
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  3. 10-27-2010 01:50 PM #23
    Closer_2001
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    Quote Originally Posted by 06 4.8 View Post

    Well my dad said take this negative and turn it into a positive..
    l
    Wise old man!!!
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  4. 10-27-2010 03:08 PM #24
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  5. 11-05-2010 02:37 PM #25
    gottaswapup
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    Quote Originally Posted by 06 4.8 View Post
    Well I took off work yesterday to tear my motor apart and found the #6 exhaust valve spring broken, then once i got the head off I looked doen in the block and where a piston is supposed to be i found one chunk about the size of a chicken nugget the rest were so small they fell into the oil pan im assuming. When it happened it completely chewed up the head and ate the spark plug. looking down in the cylinder hole u can see that it chewed up the crank and the cylinder wall was demolished.

    Well my dad said take this negative and turn it into a positive..
    Hello reman longblock LQ9!!lol
    Were these the original design 26918s, or the recent, higher-rate 26918s?
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  6. 11-05-2010 02:58 PM #26
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    All the chevrolet geared performance websites need stickies on comp 918s. After reading about the first ones I said no way am I gonna risk my motor. Patriot dual golds for me.
    99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
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  7. 11-05-2010 03:21 PM #27
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    Quote Originally Posted by zeake View Post
    All the chevrolet geared performance websites need stickies on comp 918s. After reading about the first ones I said no way am I gonna risk my motor. Patriot dual golds for me.
    They've killed a few Hemi's too
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  8. 11-05-2010 09:51 PM #28
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    Quote Originally Posted by Frenchy View Post
    They've killed a few Hemi's too
    so have i. lol
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    and ya it will beat a hemi.
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  9. 11-07-2010 12:54 PM #29
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    I've got comp duals on my heads.... I'm almost positive that I read that comp/pac are made by same company?
    blown transmissions are about as useful as 97% of the guys on this forum
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