Difference between NA cylinder head and the Turbo head

[Galant4g63]

Hi
Is there any difference between the turbo head and the n/a head, on the 1G?

[seth98esT]

Cams.

[Galant4g63]

Ok so the valves and the valve springs is the same

[silver_beast98]

whats the difference in the cams? i've been looking but couldnt find the specs anywhere.

[fuel]

Cam lobe profile and duration is different for non turbo and turbo. Other than that the heads are the same.

[Galant4g63]

Do the evo 1-3 cylinder head fit my 4g63 sohc 93-?

[bmxmike]

No cause the engine is turned 180 degrees a eclipse or a hyundai will

[QnzMostWanted]

No cause the engine is turned 180 degrees a eclipse or a hyundai will

thats inaccurate

the EVO 1-3 heads are the same setup as the 1g and 2g heads, they will fit

Evo 1-3, 1g and 2g heads fit teh 7th Gen 4g64 blocks, will also fit the 7th gen 4g63 overseas

the evo 4-9 heads will fit the 8th gen 4g64 blocks cuz its inverted 180*

[Galant4g63]

thanks
is there any difference betvene the 1g and the evo head?

[bmxmike]

Im not sure i know between the 1g and 2g the 1g flows more cause it has bigger intake and exhaust ports,.

[QnzMostWanted]

evo heads flow more and hold more hp, however the evo intake manifold doesnt fit in the galant, neither does the cyclone intake manifolds

(I could be mistaken tho about it flowing more)

[bmxmike]

It may flow more i have never looked cause i didnt think it would work ill go see if i can find some info out.

Well i cant find any info over the difference in the head it really doesnt matter if you dont plan on doing any port work get a 1g unless you find out some more info on the evo head

[Galant4g63]

ok thanks
but will the dsm 1g or 2g exaust manufold fit?

[bmxmike]

ya as long as you get 4g63 not the 420A! Just make sure when your looking that it say 4g63 or 4g64... And obx replica is recommened by a few ppl here if you buy off ebay

[Galant4g63]

Ignition module frome a evo
Is it the same as 2g?

[phizzalot]

You shouldn't double post and you should give more information from what year evo? specs?

[Galant4g63]

Sorry for the double post dint think that the new thread was out my mistake.
The evo ignition module is from a Evo 1-3

[Galant4g63]

And also wonder if the evo 1-3 cams will fit a dohc head

[seth98esT]

^They will.

[Galant4g63]

Good so i can just remove the original and bolt on the evo cams.
Will also the later cams fit?

[mysticj]

evo 1-3 and gvr4 cams are 252 duration on intake and exhaust with 9.5mm lift on both cams.
us 4g63 for turbo and na are supposely 256
unsure about lift

[silver_beast98]

thanks. i was wondering what the difference was because i have a 1g head and both sets of cams. im building a motor over the summer and its going to be NA, at least for a while. i'd like to put some aftermarket cams in it but i was wondering if either set really had any benifits over the other if not.