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· Registered
2008 Impreza 2.5i hatch
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202 Posts
Discussion Starter · #1 ·
Alright, so I was autocrossing this weekend and had my hood up a lot to cool the engine (what?! the turbo guys were doing it and I felt left out :() and was poking around between runs once, and I found my block code.

EJ25.

I pulled over my friends, and was like, "Uh guys, I think I have an EJ25 block, not an EJ23 block." They were just as shocked as I was.

So my question is this: Is the EJ23 an EJ25 block with different internals? Or do I pretty much have an EJ25 minus the turbo and piping?
 

· Meany Head
2000 RSC
Joined
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13,908 Posts
Hmmm... I think there might be a little EJxx confusion here.
The turbo guys (wrx/sti) should be equipped (year dependent) with EJ205,EJ255 and EJ257 motors.
I think your EJ25 is infact a EJ253. The NA version of the EJ series engines. I think my 2000 EJ25 is an EJ251 if memory serves.

Any EJ experts care to chime in on my half-baked theory?

This should help a little though.
http://en.wikipedia.org/wiki/Subaru_EJ_engine
 

· Registered
99 Aspen White Coupe
Joined
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480 Posts
What Skidd said is right, EJ is the series (read: every impreza engine) and the next two digits are the displacement. The next digit is the particular variant, which people often leave out.
 
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