Identify engine revision Options

[ksporry]

Guys,
two questions really.
As said in a previous post I was thinking about installing a turbo on my celica. I have a 3S-GE engine, and others here stated that should be possible if it is a healthy engine. However, I understood that there are different types of 3S-GE engines around, so I was wondering how can I find out what mine is without disassembling half the engine and comparing ports etc.? Will the version be printed/stamped somewhere, and if so, where would I find that?

Also, I was wondering if I could use a CT26 turbo. I spotted one on ebay, new, and for a decent price (currently halfway through bidding though). are there any other turbo types I could use?

[domyz]

Engine looks definitly like a gen3 3s-ge. Intake-manifold contains the ACIS valves=>gen3
I can see the oil-cooler behind the exhaustmanifold, but no oil-filter.
Means the filter is located at the bottom of the engine =>gen3

If the oilfilter is bolted directly to the cooler=>gen2

100% agree, your oil cooler is exactly at the same place than my rev 3 3sgte and no oil filter