Engine swap for my 98 legacy outback

Asked by Stormgarden20 Mar 18, 2018 at 08:24 PM about the 1998 Subaru Legacy 4 Dr Outback Limited AWD Wagon

Question type: Car Customization

So I want to try and run some power in my subie.
It’s a 98 ej25 and I’ve heard that they have weak
heads. So can I throw any ej257 in it.

9 Answers

21,515

what's the under body look like is it rotted out ?

No it’s a California car so it’s clean

35,220

You won't get better heads until the DOHC 2013+ 2.5i

Would I be able to just swap in a newer sti 2.5

35,220

The 1996-1999 first gen OB had Subie's worst motor ever. Replacing it would also require changing other parts inc the ECM. These dinosaurs are usually best retired; just not worth resurrecting.

Well that’s disappointing. I love this car and was hoping to make it better but I guess I’ll run it stock till it dies

35,220

Yup. It'll start overheating (internal percolation) badly someday, at which point just toss it. Good luck 'til then.

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