Does anyone know what the torque specs are for the timing cover on the GM High Feature engine? Just finished replacing the timing chain and was looking for them.

Welcome to the forum.
Possibly one of our members may have access to All Data for the timing cover torque specifications.Check back in here.
$30 Subscription to alldata here:https://www.alldata.com/diy/en/diy-repair-information
You also could call the dealer, they might be able to provide the correct spec over the phone.
I know before I purchased my Pk Ave manuals, the dealer allowed me to look at their manual in store to obtain torques specs.

I am betting it is 18 ft lbs, almost everything in there is 18 ft lbs, I could be wrong though.
I know you are done, but here is a video that may help others if they do the same job in the future..
https://www.cloyes.com/gm-3-0-3-6l-t...loyes-9-0753s/

Hopefully somebody will know, if not you may have to go with an All Data Sub.