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2.5 heads on a 2.2 block?

dave833
in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

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So I've got a '97 EJ25 with a rod knock and a '97 EJ22 with bent valves in one head and I'm wondering if I can put the two together- EJ25 heads on EJ22 block. Anybody done this? I couldn't find any definitive threads in my search.

If you do the compression ratio will probably end up real low.

 

I have a 97 2.5 shortblock if you need one $400 shipped.

yes you can do it. NASIOC has a good deal of information on that kind of stuff, but i have seen folks mention it here before.

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