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Old 07-30-2013, 08:49 PM   #7
Scooby Specialist
Member#: 216984
Join Date: Jul 2009
Chapter/Region: NWIC
Location: Coeur D Alene, ID
1996 Impreza outback


Originally Posted by bigthoogs View Post
I've seen some people running ej253 blocks with phase 2 ej22 heads. I've got a 99 legacy 2.2 and I need heads baaaad.
Well, the phase 2 2.5 heads will bolt up just fine along with your intake manifold, but combustion chamber size will be slightly too big for the 2.2 bore of your current engine.

So, 3 choices:

1. Find phase 2 2.2 heads,

2. Find another phase 2 2.2 long block and swap it in,

3. Find a 2.5 block phase 2, then find the phase 2 2.2 heads and put them on the block for a higher compression franken motor.

Since your car has a phase 2 engine, you won't be able to put the phase 1 2.5 heads on your current 2.2 block because of the wiring and such.

What happened to your current heads?

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