EJ25 Engine Swap?

Heads, valves, pistons, rods, crankshaft, etc...

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devilzdriver
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Posts: 188
Joined: Sat Jul 14, 2012 6:39 pm
Location: Wahiawa Oahu

EJ25 Engine Swap?

Post by devilzdriver »

Hey guys, so i have the EJ22T and was thinking of swapping to an EJ25 the NA SOHC same as the foresters and things like that, i was wondering has anyone done this? I assume so, i searched but did not see anything. The reason i want to swap is because during the RallyX's i've done i need TQ and the 22 just doesn't have it.
James614
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Posts: 1744
Joined: Sun Jun 10, 2007 4:35 am
Location: Arkansas

Re: EJ25 Engine Swap?

Post by James614 »

Search for frankenmotor swaps. You can use the EJ25 short block, but the newer heads are not compatible with our older sensors. People have gotten butt loads of low-end torque (by NA standards) with the 2.5 block on 2.2 heads.

A full 2.5 long block would give you less low end than you have now ;)
93 Touring Wagon (EJ20G 5spd Swap) -- Finally back and running strong as ever!

05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
devilzdriver
First Gear
Posts: 188
Joined: Sat Jul 14, 2012 6:39 pm
Location: Wahiawa Oahu

Re: EJ25 Engine Swap?

Post by devilzdriver »

James614 wrote:Search for frankenmotor swaps. You can use the EJ25 short block, but the newer heads are not compatible with our older sensors. People have gotten butt loads of low-end torque (by NA standards) with the 2.5 block on 2.2 heads.

A full 2.5 long block would give you less low end than you have now ;)

Good to know, ill look up the "Frankenmotor" but essentially its using the EJ25 block with EJ22 heads? i would assume delta cams, and thats more or less about it. I guess its true subarus are giant LEGO's and everything just snaps together.
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