Can you put 2.2 heads on 2.5dohc with out modding anything or would it be better to just swap for whole 2.2 and would i need to change wiring
2.5 to 2.2
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its a ej25D dohc or quad cam
Anyone
EJ22 heads on EJ25D block makes the high compression motor, meaning you have to run premium fuel. You need the EJ22 intake manifold to match the heads, and you need to swap over the EJ25D's intake manifold wiring harness onto the EJ22 intake manifold.
If this sounds like too much work for you, you can just swap in a complete EJ22 longblock and call it a day. As jton said, the 90-95-ish EJ22's had the dual port, the 97-01's has single port exhaust header, you can just swap on whichever one you need to and it will be fine.
~Josh~
If this sounds like too much work for you, you can just swap in a complete EJ22 longblock and call it a day. As jton said, the 90-95-ish EJ22's had the dual port, the 97-01's has single port exhaust header, you can just swap on whichever one you need to and it will be fine.
~Josh~
Not unless the timing is set wrong. Yes it's true the EJ22 pistons protrude above the deck by .010" or so (can't remember the exact number) but the headgasket is .050" thick. The valves don't protrude below the head deck IIRC, unless you have had the head severely decked. Even then I don't think they do. The pistons have pockets designed to add clearance for the valves, however the factory cam profiles don't open soon enough or close late enough to cause valve-piston contact, even between heads. And I don't believe its on the edge either, you can buy regrinds which are more aggressively profiled. If you went aftermarket, then I'd say you should check clearances. But stock? Not an issue.
there is already a thread for this with a ton of technical knowledge.
use the search button. i found it for you.
http://www.rs25.com/forums/f5/t3080-2-2-heads-2-5-a.html
use the search button. i found it for you.
http://www.rs25.com/forums/f5/t3080-2-2-heads-2-5-a.html
You Hijacked someone else's thread, he was responding to the Original Post....
and now that I look, you already have a thread you started on this..
http://www.rs25.com/forums/f128/t171447-ej22-dohc-into-98-forester-ej25-dohc-swap.html
and now that I look, you already have a thread you started on this..
http://www.rs25.com/forums/f128/t171447-ej22-dohc-into-98-forester-ej25-dohc-swap.html
PWNED. Thanks Josh
i win.
I will say this one more time.....
You can put ANY EJ head on ANY EJ block, period. As long as you use the headgasket that was designed for the block, you won't have issues.
End of story. Now let your mind ponder all the engine combos you could make.
~Josh~
You can put ANY EJ head on ANY EJ block, period. As long as you use the headgasket that was designed for the block, you won't have issues.
End of story. Now let your mind ponder all the engine combos you could make.
~Josh~
What he said^
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