to answer the question,yes these are the same...but my opinion on the ticking is that it may be the o-ring on the oil pump strainer,,sometimes these will break and loose oil presure
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 02-06-01-038
Date: December, 2002
Some customers may comment on an engine tick noise. The distinguishing characteristic of this condition is that it likely will have been present since new, and is typically noticed within the first 161-322 km (100-200 mi). The noise may often be diagnosed as a collapsed lifter. Additionally, the noise may be present at cold start and appear to diminish and then return as the engine warms to operating temperature. This noise is different from other noises that may begin to occur at 3219-4828 km (2000-3000 mi).
The 0-ring seal between the oil pump screen and the oil pump may be cut, causing aeration of the oil.
Inspect the 0-ring seal and replace as necessary. Use the applicable part number listed below. Refer to the Engine Mechanical sub-section of the appropriate Service Manual.
Parts are currently available from GMSP0.
For vehicles repaired under warranty, use the table shown.
Important: Inspect the oil pump and engine block oil gallery passages. These surfaces must be clear and free of debris or restrictions.
thats what i would think the problem is on this model..i hope i have helped