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Old 04-05-2012, 05:33 PM   #1
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95 Motor Swap (compatibility) question

So I have an opportunity to pick up a running (although knocking) 1999 95 for $700 delivered. I have a good B204L bottom end. Is there any reason (other than the loss of displacement) that I could't swap that B204 2.0 bottom end in for the bad 2.3?

I've done 2 93 swaps on 2002 cars but never on a 95.

Thanks dudes

Last edited by BigMike; 04-05-2012 at 05:36 PM.
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Old 04-06-2012, 05:28 AM   #2
 
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Hi Mike....

The Bx4 is a common replacement for the B235. (There's a B234 in my 99 9-5)

All accessories are swapable but you'll need the oil pan from the B235 and possibly the timing cover. The head swap is a different beast....
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Old 04-06-2012, 06:12 AM   #3
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Yeah, the plan was to use the 204 with the 235 head, timing cover & pan. This is going to be my beater, so the idea is just to get something that runs well, not necessarily hard.

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Old 04-06-2012, 07:09 AM   #4
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what's wrong with the old engine?

If there's no sludge, and it's just a knock, take of the rod caps, and have a look.
If there's no scoring you might be able to get away with new bearings, and be done.

If it's sludged and gross.... then start looking @ other options.
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Old 04-22-2012, 09:31 AM   #5
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I did exactly this swap on my 1999 9-5 last spring. The old engine blew a piston at 436K km, and I had a spare B204L block sitting in the garage. Very straightforward. Had to relocate the oil pressure sensor (there an alternative socket on the back of the block) and used a B204 head gasket to mate with a B235 head.

Flashed with a Euro 9-5 B205R stage 3 tune from ecuproject. One year and 30K later - still going strong. A little less torque than a 2.3, but longer top end and marginally better fuel economy.
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Old 04-26-2012, 10:59 AM   #6
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Quote:
Originally Posted by dip View Post
I did exactly this swap on my 1999 9-5 last spring. The old engine blew a piston at 436K km, and I had a spare B204L block sitting in the garage. Very straightforward. Had to relocate the oil pressure sensor (there an alternative socket on the back of the block) and used a B204 head gasket to mate with a B235 head.

Flashed with a Euro 9-5 B205R stage 3 tune from ecuproject. One year and 30K later - still going strong. A little less torque than a 2.3, but longer top end and marginally better fuel economy.
That's awesome!
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