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Old 04-26-2007, 06:30 PM   #1
dexterous
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Default Help with swapping a 96 Legacy 2.5 DOHC motor (Same for same)

A friend has a 96 Legacy 2.5 with a DOHC motor. It seems that the motor has the standard head gasket issue that all of those motors seem to have. The issue is that the motor has been overheated to the point that its seriously damaged. Does anybody know what other year/vehicle motors will swap into this car without any wiring? Since its a DOHC motor, I was wondering about the 98 2.5RS motor (also a DOHC). By the way, if anybody has a compatible motor, please PM me!
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Old 04-27-2007, 11:19 AM   #2
austenf740
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It should be any DOHC motor pre-98 except for the 99 Legacy GT which seems to have been a year behind I believe. I found this information out when looking for cam gears that would fit my 98 RS engine and found some off of a 99 Legacy GT. Forester also had a DOHC engine in 98 only i believe and the outback had it from 96-98 I think.

I have a list somewhere so if I find it I will post up. You could also find a working short block and swap it in as long as the heads are not damaged too.
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Old 04-27-2007, 12:02 PM   #3
Matt Monson
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In '99 the LGT, Legacy Outback, and Forester all kept using the DOHC engine. Technically, the '96 engine is a one year only engine, but any of the other DOHC Ej25's through '99 will work. Also, some importers stock a world market DOHC Ej25 that was used even later. It will also work, but requires that you use your exhaust manifold...
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Old 04-27-2007, 12:34 PM   #4
MY99 2.5GT
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Whatever you do when you swap the new motor in do not use those crappy graphite gaskets. With any used engine you find it is a good idea to take the block and heads to a machine shop to cut a small amount off the block deck and the head surface. It shouldn't cost more then a couple hundred but will ensure there is no surface warpage that will cause future gasket seating problems or failure.
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Old 04-27-2007, 12:35 PM   #5
MY99 2.5GT
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I still have my block and heads as well as all of the components for them but they are in pieces. So extensive re-assembly may be needed.
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Old 04-27-2007, 01:38 PM   #6
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Quote:
Originally Posted by Matt Monson View Post
In '99 the LGT, Legacy Outback, and Forester all kept using the DOHC engine. Technically, the '96 engine is a one year only engine, but any of the other DOHC Ej25's through '99 will work. Also, some importers stock a world market DOHC Ej25 that was used even later. It will also work, but requires that you use your exhaust manifold...
Are you sure about the Forester having the DOHC in '99? I was told of a forester that was a '99 with a SOHC in it but i guess subaru could have started using a different engine in the middle of the MY or the date of that car was wrong. You are right about the legacy outback having the DOHC still in '99 though.
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Old 04-27-2007, 11:18 PM   #7
ballitch
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so you took the block COMPLETELY apart? I.E. crank, rods and pistons all laying on the shop floor next to the block halves?



~Josh~
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Old 04-28-2007, 05:37 PM   #8
Charlie-III
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Quote:
Originally Posted by Matt Monson View Post
In '99 the LGT, Legacy Outback, and Forester all kept using the DOHC engine. Technically, the '96 engine is a one year only engine, but any of the other DOHC Ej25's through '99 will work. Also, some importers stock a world market DOHC Ej25 that was used even later. It will also work, but requires that you use your exhaust manifold...
Doing almost any earlier 2.5L swap is easy. Usually the biggest difference is things related to the intake manifold (sensors and some brackets). Sooooo...swap intake manifolds if required.
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