evo3 head vs. 1g head

[4seasons69]

the cas is definitely different than the one on my 90. I'll take off the intake manifold and look at the intake ports and see what they look like. is there anything else that could verify that it's an evo3 head like any markings on the cams or anything? thanks for the replies

[4seasons69]

well the intake ports on the head are definitely the same as the 1g intake manifold. it also doesn't look like it's been machined to port match them either. is it safe to say this is actually just a 1g head??

[Andrew7dg]

ok
evo 3 head
2g size intake ports
the intake ports are a straight shot to the valves
uses 2g gasket
they have bigger cams stock over a dsm
the springs are alittle heaver
the valves are lighter and sodium filled (If it is the evo III head and not a evo I-II head)
uses a 94 style halo cas
the evo I-III heads are pretty much the same you need a casting number to find out what it came off of.

Is the port angle different on a Evo 3 vs a 2g?
I guess I thought the Evo and the 2g heads were pretty much the same except for the stuff bolted on to it.

[Forced Fed]

Is the port angle different on a Evo 3 vs a 2g?
I guess I thought the Evo and the 2g heads were pretty much the same except for the stuff bolted on to it.

Yes, the port angle is different from what I've researched online.

[CBRE]

Im switching both of my cars to 2g heads, hope im doing the right thing, Kiggly does very well with the 2g head. For a street car(wich my cars are) I think it would be MUCH more drivable.