Right, I've never done it myself but as I understand it, any T7 engine will drop in. That's any 2000-2002 9-3, 2003 9-3 conv, 1999-whenever 9-5. Mechanically, the 2.3L is a stroked 2.0L. If you get a 2004- 9-5 engine you have the bonus of it coming from the factory with the latest PCV update so you'll have less anxiety about sludge. As far as I know, within the block and the head these are all the same - the differences between a B2x5R and the -L and -E versions were all in the turbocharger system and the ECU.
If you go with a 2.3L engine your ECU will need to be re-mapped. The 2.0L ECU will probably start and run the car fine but not optimally. Whoever sold you the Stage 2 tune should be willing to swap out the program for free or a small nominal fee or else you should find another tuner.
$1700 seems like a lot - there are plenty on eBay for $1000 plus shipping and I bet if you contacted the local wrecking yard, mass engine re-builder, or ask the local Saab indy where they get engines you could do much better. There are complete "mechanic's special" cars with things like leaking water pumps or tranny issues available around here for $1500.
You would do some stuff to the "new" used engine before you put it in the car: change the headgasket (easy when the engine is out of the car!), move over your new timing gear and whatever other accessories look better from your engine, use your turbo, replace the crank seal, maybe delete the balance shaft if you want.
On the other hand, you already have this engine apart. The gudgeon pins are pressed in, right? Most machine shops consider this a one-time operation: pressing them out again will destroy the piston by distorting it. If that's the case, the bare minimum required is 2 new pistons and 2 new rods unless you can magically find used con rods with the right sized pistons already pressed on. The engine won't be balanced like a factory engine but maybe it doesn't matter that much. And there's still the insanity of doing all that work on a high-mile engine without renewing the cylinder walls and main bearings.
posted by 64.201.2...
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