Yukon 2022 6.2 engine died at 75,000 miles.

[BacDoc]

That is exactly what Vlad and his team are doing.

I was going to post exactly this!
Vlad and his service are doing what I would expect GM to advise their dealerships to do.

 

[BacDoc]

This is very cool and interesting information. I probably didn't write it in detail. We did not increase the gaps between the liners and connecting rods. We have just reduced these gaps by installing L86 liners instead of L87 liners. Because the L86 earbuds fit more tightly. We sharpened the gaps inside the cylinder, increasing them between the cylinder wall and the piston. The main problem was precisely in this place. The piston inside the cylinder on the new engine did not move freely, it wedged a bit. this caused scratches and scuff marks on the cylinder walls and the Teflon coating of the piston.So we didn't do anything new, we just adjusted the temperature gaps inside the cylinder according to the GM documentation.

This is essentially blueprinting!

 

[West 1]

When building engines with tight clearances it is necessary to have all the parts and block at the same temperature. If the pistons are 80* and you are putting them in a block at 50* you will have issues with size and fit. Common issue in engine building. Performance builders will leave the block and parts overnight to acclimate to the same temps before assembly to avoid issues.