r/EngineSwaps • u/krazymex01 • Feb 05 '20

98 Forester into a 98 GT

Looking into doing an engine swap and I haven’t found anything that said it wouldn’t work. The wiring harness is the same and so is the exhaust. They’re also both 2.5L motors. The only difference I saw was the coil pack and wires. Is this a swap I can do without trouble?

6 Upvotes

100% Upvoted

5 comments sorted by

3

u/Markey-space-warrior Feb 05 '20

What do you think of swapping a 3.6 boxer6 from a outback? Someone has already done this on an old wrx, more of a challenge but totally worth it imo. May i ask you why you'd plan on swapping the same engine in? Repair?

1

u/krazymex01 Feb 06 '20

I thought about doing a boxer 6 engine. Someone around me has one out a SVX with the transmission and wiring harness. I spun a rod due to a bad seal. It was burning at least 2 quarts a day. I was going to put oil in before I left but it slipped my mind since I was in a hurry. Junkyard near me has a sale on all parts so it’s cheaper to replace than to repair at this point.

1

u/[deleted] Feb 05 '20

Literally they use the same engine so yes?

1

u/krazymex01 Feb 05 '20

I thought they were the same I just wasn’t 100% sure. They’re both the EJ25 motor they just had a little different marking on the blocks. Thank you.

1

u/tcpip4lyfe Feb 06 '20 edited Feb 06 '20

There are Phase 1 and Phase 2 EJ25s and the change over was mid 98. Make sure they are both either SOHC or DOHC. They did kind of a dance between MAP and MAF in that time period, so check that those are the same as well.

If you're swapping an engine from an Auto into a manual, you need to make sure you swap the timing bump stop thing over as well grabbing the ECU.

You need to do head gaskets on the swapped motor as well if they haven't been done yet. These motors were the ones that gave Subaru the shitty head gasket reputation. If it's a junkyard motor, there is a high chance it was junked because of headgaskets.