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Thread: clanking noise explained

  1. #1
    Join Date
    Aug 2007
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    Gramercy
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    clanking noise explained






    the bolts in the crank are tight and loc-tited, the converter bolts are tight and loc-tited also.
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

  2. #2
    Join Date
    Jul 2008
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    Racoon Twp., PA
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    Nice work!

    That sucks.
    2013 CC 5.3
    81 C10 LS1 project

  3. #3
    Join Date
    Sep 2007
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    Broken Bow, OK
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    Damn... you must be making pretty good power. Ha. Nice piece of carnage.

  4. #4
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    May 2008
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    Round Rock, TX
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    3,069
    Wow.. almost makes you wonder if everything in there was correct. Like maybe the snout was too long on the convertor and it was in a bind... Good carnage for sure

  5. #5
    Join Date
    Aug 2007
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    the converter went in great, no problems. i spun the converter around a few times before i put the bolts in. it had 3/16" gap from the converter to the flexplate until i closed the gap to install the bolts. i had a loose converter bolt when i installed my Circle D but i didnt worry about it until i swapped in my 6.2 i put 2800 miles on it and this is what i get. there was no cracks that i seen but maybe it was starting to crack before i installed the motor.

    all i can figure is it was cracked before and running 3:42s for so long to 6800 rpm it was too much....i dunno it sucks. hopefully nothing else is broken, ill find out when i put it back together.
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

  6. #6
    Join Date
    Jul 2004
    Posts
    11
    Ive seen some old 6.0's crack but that pretty nasty.
    '00 ECSB Z-71

  7. #7
    Join Date
    Jun 2010
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    185
    I've had the same thing happen with a bread and butter 350 in an old C-10. Get a nice aftermarket SFI approved flexplate and put it back together.

  8. #8
    Join Date
    Aug 2007
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    Gramercy
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    its got an SFI plate now, its all back together, just gotta change the fluid and put the Y pipe back in. monday ill be burning the tires off it jj.
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

  9. #9
    Join Date
    Aug 2007
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    Gramercy
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    this is after 9300 miles after my first converter swap, and the PI3600 swap. this is why i will ALWAYS change my tranny fluid/filter no matter what.


    added some magnets to help
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

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