What year and engine is your rig?
It’s a big job, but I’m glad I did it. I ended up putting in a Brian Tooley racing stage 2 truck cam, and it has a great lopoe at idle and great power throughout the rev range. I also deleted VVT and was able to use a three bolt cam that way, and the reassembly was easier. It also meant I could delete the troublesome VVT timing chain tensioner and replace it with a standard LS guide.
Here’s my Build thread. I started with da Vinci cam, and for a number of reasons it didn’t work out. So I had to go back in with the Brian Tooley cam. Both parts lists are in the thread, one for each time I did the job.: 2012 Yukon XL Denali 6.2L Cam Swap Thread
https://r.tapatalk.com/shareLink/topic?share_fid=17772&share_tid=121671&url=https://www.tahoeyukonforum.com/index.php?threads/2012-Yukon-XL-Denali-6.2L-Cam-Swap-Thread.121671/&share_type=t&link_source=app
Sent from my iPhone using Tapatalk