vwilson

This is great information. Thanks. I don't have EJJT heads I've been offered to buy some but didn't know anything about them. I'd prefer to not use them. I kind of thought that '95 heads would be slightly better for what I'm doing. The problem is they are impossible to find. I'm currently running a Rancho, Prostreet, Freeway Flyer transmission so it should handle the extra HP. Also put front and rear disc brakes. Well I guess I'll have to call a ton of junk yards to find some '95 heads.

Awesome thanks for this. It’s actually a ‘66 Split bus conversion. It’s amazing how well these engine fit in that engine compartment. For the Turbo heads did you just use the plate on the back of the NA head? I’m new to these so I have no idea if this is the right block off for a turbo or even where the passageways are on the turbo heads.

I have a 1996 Impreza MT EJ22. I don't have the car, just the engine. I am looking at converting it to dual port exhaust but have a few questions about it: 1. Will any heads from 1990-1995 be a direct bolt on? 2. I know early cars didn't have EGR but Is there any difference between heads from a AT vs MT car that would prevent me form using AT heads? 3. I think my current engine has Roller Rockers and HLA. What do most 1990-1995 heads have and should I swap these over during the conversion? 4. Would EJ22T heads work or should I stay away from those for my purposes? Is it easy enough to block off the oil ports on the passenger head for non-turbo applications? Any help would be much appreciated. Thanks.