Allen wrench size for 5.3 LS engine?

2003 GMC YUKON
100,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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LV2BOWL
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I have even watching your series on rebuilding a 5.3l ls engine. Mine is a 2003. What is the big Allen wrench size I need for that engine?

Thank you
Jul 22, 2021 at 6:24 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
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Hi,

First, thank you for watching. Your interest is appreciated.

As far as the allen wrench, which bolts are you referring to?

Let me know.

Take care,

Joe
Jul 23, 2021 at 1:00 PM
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LV2BOWL
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To be honest I was just going through the videos. I can't find what it was going on. It was a large one either 13mm or 17mm hex wrench?
Jul 23, 2021 at 3:20 PM
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RYAN L
  • ✓Experienced Mechanic
  • 272 POSTS
Hey thanks so much for watching the Summit Racing sponsored How to Build a LS series! I'd be happy the answer your question if you could provide me with which video and timestamp you are referring to.

Thank you for using 2CarPros!

Best,
Ryan
Jul 24, 2021 at 5:38 AM
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