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LS 5.3 Heads over degreed?

Tiny
SHAWNEVANS6611
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • 4.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 187,000 MILES
I have TTY bolts (the same ones from your 5.3 video) and on my final pass for bolt #9 and #10, I accidentally went to 90 degrees instead of 50.I did not realize to late at night about to fall asleep. Now this is the next day and wonder of this is going to cause problems. Just for reference, the final ft lb for #9 came out to 76.2 and #10 at 73.6.I know these are supposed to be only degreed. But I wrote down the ft lbs just to know. All the others are between 69.5 and 79.6. But #7 and #8 are at 81.5 and 81.6.

What are your thoughts on #9 and #10?
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Friday, July 19th, 2024 AT 5:18 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,719 POSTS
The torque to yield bolts needs to be correct, I would remove the bolts that were over tightened and replace them. It is hard to say if this will cause a problem or not, sorry.
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Saturday, July 20th, 2024 AT 10:43 AM
Tiny
SHAWNEVANS6611
  • MEMBER
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Thanks Ken. I guess I just needed reassurance from someone. I will remove and replace.
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Saturday, July 20th, 2024 AT 11:54 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,719 POSTS
You are welcome, please use 2CarPros anytime we are here to help.
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Sunday, July 21st, 2024 AT 10:59 AM

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