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 23, 2021 at 1:24 AM
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JACOBANDNICKOLAS
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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 8:00 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 10:20 PM
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RYAN L
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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 12:38 PM