intake manifolds, which work and dont

[94legacy2.2]

So Im plannin on switching to 2.5 dohc heads. Of course the 2.2t manifold doesnt work.
Im using Phase 1 heads (I believe) I wanna end up using top feed injectors. Now which manifold should I look for or use?

Thanks
Tyson

[PhyrraM]

Good question.

I haven't seen any phase 1 DOHC intake manifolds that use top-feeds.

[94legacy2.2]

well im not so much worried about using top feeds right now, Im worried about knowing which manifold fits a phase 1 head.
The bolt holes are straight on my head not offset.

SO saying that what manifold fits

[PhyrraM]

Most common in the North America is from the EJ25D. Basically the 2.5 liter DOHC non-turbo engines. Ran from '96-'99 in the Legacy and Forester. Also used in the '98 Impreza 2.5RS.

JDM imorts that will fit are the EJ20G, EJ20K, EJ20H,EJ20R. EJ20G is the easiest to fit in a BC Legacy if you've got a complete manifold, including fuel rails, water lines, PCV, EVAP etc.

[93GCsedan]

I have jdm ej20g heads and intake maifold that will bolt up for sale. Check in the parts shed for my thread, I will be posting pics up soon of them. If your interested.

[abest10]

from my findings i found out that phase 1 fit all phase 1 and vice versa for phase 2

http://bbs.legacycentral.org/viewtopic.php?t=38836

[94legacy2.2]

from my findings i found out that phase 1 fit all phase 1 and vice versa for phase 2

http://bbs.legacycentral.org/viewtopic.php?t=38836

true but im looking for what fits a dohc head not sohc heads.

[scootledoo]

so a question then, i got a stock 91 ss.
and im looking to put on 2.5 heads and intake manifold.
off ether a wrx or sti. woundering if that would work?

[PhyrraM]

so a question then, i got a stock 91 ss.
and im looking to put on 2.5 heads and intake manifold.
off ether a wrx or sti. woundering if that would work?

I assume your talking a USDM WRX or STI. If so, niether will work without what amounts to a wiring swap. The cam sensors on either of those haeds are not compatable with the Legacy SS ECU.

There are tons of posts about DOHC heads on our blocks, but the short story is you need phase 1 DOHC heads and a compatable intake manifold. The easiest is most likely getting both from a JDM EJ20G. The most common is getting them from a '96-'99 EJ25D (Legacy, Forrester, '98 2.5RS).

[Matt Monson]

An EJ20D NA manifold from a 1989-1993 NA Legacy 2.0l will also fit. I only mention this because I have one hanging on the wall of my shop and a little bird told me the OP of this thread thought it was pretty and wanted to know if it was for sale.