I got it from Yank performance (guys who make the torque converters)

He told me "New GM LS complete timing sets
set contains :
Gm crank gear, Gm 3 bolt cam gear for use on LS1, LS2, or LS6 and The LS2 super HD chain
This is the LS2 HD set that will fit and work great on the LS1 or LS6 engines as well as the 4.8,5.3, 6.0 truck engines"


I'm assuming it's AC Delco...but i could be wrong.