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Engine build/torque specs?

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Old Feb 17, 2022 | 07:42 PM
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Question Engine build/torque specs?

I'm about to start building a 5.3L LMG engine from the bottom up. I plan to install all new bearings, seals, and which ever bolts have to be replaced. I know some bolts can be re-used, while others are meant to be replaced. This will be my first complete re-build, so I need a little guidance.

Where can I find all the torque specs for a Gen-4 engine? Is there a book or service manual that has all the torque specs? Also, I will need all the tolerances for all the bearings. Where can I find those? I know there are countless videos on Youtube, but I'd prefer to have everything in one place. What's the best advise for someone doing a complete rebuild for the first time?
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Old Feb 17, 2022 | 08:43 PM
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There's a few LS Building books you can find online, I know Amazon sells them as well.

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Old Feb 19, 2022 | 09:16 PM
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Here’s a generalized chart showing ratings for LS engines. It’s on Summits website. There are many other online websites showing these values as well.
Pay attention to Ft. Lbs vs In Lbs. Huge difference there.


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Old Feb 20, 2022 | 03:26 PM
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I just received a book that I ordered from Amazon. I'll compare those specs to the Summit specs and see if there are any differences.
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