evo3 head vs. 1g head

[4seasons69]

I'm just curious if anyone knows if there is anydifference between the two what the pros and cons are between the two?? thanks for any info you have

[Super Bleeder!!]

Evo heads resemble 2g heads, if anything; but they are far from identical.

Evo 8 and 9 heads are different as well.

This question is rather vague. Specifically what year evo head are you referring to?

[4seasons69]

Evo heads resemble 2g heads, if anything; but they are far from identical.

Evo 8 and 9 heads are different as well.

This question is rather vague. Specifically what year evo head are you referring to?

oh shoot I'm a little tired I meant to put evo3 head in the title

[4seasons69]

I purposely made the question a little vague cause I picked up a 6bolt with 10k on it and it's supposed to have an evo3 head on and I'm just trying to figure out what I can about them

[Super Bleeder!!]

Well, i know evo3 heads are their own deal; They aren't exactly a 1g head or a 2g head.

The intake manifold flange is different on the evo 3 heads, so it should have a matching intake manifold with it. A 1g or 2g intake will not work.

[Andrew7dg]

Intake manifold flange different?

An Evo 3 head is a 2g head but with different cams from my understanding. Smaller ports like the rest of the evo 4-8 heads (except turned around)

Other then that they are identical. The Evo 3 came with a different Intake then a 2g. What does the intake manifold look like?

If you have a 1g intake, it is a 1g head (with big ports) or they ported the heck out of the Evo 3 head

[scheides]

Mark will know, he's the resident evo3 expert. SuperBleeder is right though, the E3 head is similar to a 2G head, but not identical.

[Super Bleeder!!]

I may have misinterpreted what i had heard about the intake flange.

It may be that the intake will bolt up, but the ports still wont match up.

[4seasons69]

alright well it has a 1g intake mani on it. do you know how to tell if it's actually an evo3 head?

[TkrPerformance]

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.