dave833 Posted March 5, 2012 Share Posted March 5, 2012 Wondering about installing an earlier model EJ25 into a '99 Legacy. Hollander (car-part.com) says only '99 interchanges with '99, I'm just wondering what the physical differences are. A cursory search indicates the earlier ones have a 4-bolt bellhousing vs. 8-bolt, requiring mounting up the starter a little differently-- is that all? Link to comment Share on other sites More sharing options...
987687 Posted March 6, 2012 Share Posted March 6, 2012 Other than bell housing it should work just fine. The 99 is better though. The 99 2.5D uses a phase2 block. So it has the upgraded bearings and the thrust bearing moved to 5. It's a much better bottom end. But the earlier ones will work fine. Link to comment Share on other sites More sharing options...
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