What did you do to your NBS GMT800 Tahoe/Yukon Today?

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Tonyrodz

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Found an 8.1 complete with harness, ecm, and engine stand for $600.

Going to pull it apart. Valve job, bearings, probably rings. This will be my 6.0 replacement.

View attachment 421406
There's not a lot of performance parts--if any for the 8.1. There was a guy with an obs that did the 8.1 swap. Iirc, he also had the 4l80.
 

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