7G DOHC headswap.... The easy way! ???

**4-G-rim** · 10-09-2006, 08:33 PM

Ok...I finally got some pics and I hope this finalizes that the 4G64 SOHC distributor will not bolt up to the 4G63 DOHC head.

1. (Left) 4G63 DOHC cylinder with a 1g CAS in front of it (Right) 4G64 SOHC cylinder head with distributor

2. Comparison between the 1g CAS (Left) and the 4G64 Distributor(Right)

3. Another comparison of the CAS and Distributor

4. 4G64 SOHC distributor along side the spot where the 4G63 CAS would bolt to in the intake cam. Notice the diameter of the distributor and the diameter of the DOHC intake opening.

5 Here is a pic of WHY the 4G64 distributor will not work on the 63 DOHC head. Notice its much too big for the opening and length wise too.

Another angle

6. This is a side by side picture of the 4G63 head (left) and the 4G64 head (right) side by side. Compare the diameter of the opening where the CAS and Distributor would fit. The 4G64 cylinder head opening is MUCH larger.

So there are my pics explaining why it won't work.

**seth98esT** · 10-09-2006, 11:19 PM

Yah, 1.8L mirage dist is smaller, but still not small enough.

**peanotation** · 10-10-2006, 04:15 PM

so i guess the guy never got it working....just thought he would

**seth98esT** · 10-10-2006, 04:33 PM

Yah he was a big fat liar(unless he swapped to coil packs) as theres no way the 1.8L dist will fit let alone the 2.4L dist.

**Blue Ice** · 10-10-2006, 07:15 PM

so where is the info explaining the coil pack rewire in depth. Can you list a couple of sights with this info?

I guess by looking at this picture, the rewire shouldn't be too hard... just four wires?

**seth98esT** · 10-10-2006, 07:21 PM

https://www.thegalantcenter.org/index...0307&hl=jip

JiPs tutorial is pretty good. Colors may vary depending on year, but the pins should be the same(maybe not on the ECU between 97/98, but comparable).

If your wanting to stay NA, you would want to use a 94 GS ECU or a 2g Spyder GS ECU.

**jake26** · 10-11-2006, 12:04 AM

wow and he was like " i got it working guys" bull crap, he was just jerking our chain....

**jjmoneydawg** · 10-12-2006, 12:08 AM

I say a public banning of the guy who lied to us. Someone get his address I will meet you all there. :firedevil:

**jake26** · 10-13-2006, 02:13 PM

he lives somewhere in VA, i say seth is the closest to him heheheh

**bronxbombr** · 10-13-2006, 06:00 PM

Originally Posted by jjmoneydawg

I say a public banning of the guy who lied to us. Someone get his address I will meet you all there. :firedevil:

Thats just messed up :laughing: :laughing: :laughing: :laughing:

**89Mirageman** · 10-29-2006, 09:12 AM

Well guys I just read through all these pages just to get let down like the rest of you. I'm wondering if a distributor from another car (non mitsu) could work? There has got to be one somewhere that will fit the DOHC head. Next time I'm at the junk yard I think I'll do some test fitting and see what I can come up with.

**jjmoneydawg** · 10-29-2006, 11:31 PM

Originally Posted by jake26

he lives somewhere in VA, i say seth is the closest to him heheheh

i live in va as well

THE-G · 11-01-2006, 09:33 PM

so therefor there is no easy way of modding ur G

AND I LIVE IN VA TOO!!!

**seth98esT** · 11-01-2006, 09:38 PM

Jeez, whered all you VA guys come from?

The wiring for the swap is not hard by any means. Its a handful of wires. I say removing the old head and reinstalling the new one is harder, and its not hard at all, just some physical work.

**DOHCstunr** · 11-01-2006, 10:58 PM

wiring really is easy.
if you knwo yoru way around your engine bay, i'd say i could actually have all the wiring done in about 2.5-3 hours max....and i mean MAX.
assuming you are starting from a 96-98.

**da1085** · 11-02-2006, 02:11 AM

ok.....i've read the ECU swap needed to go to traditional eclipse DOHC swap....it said we have to use 450cc injectors....also we have to have an AFC to control the fuel....is there any way to just swap heads and ecu but dont get the AFC?? im asking because one of those are like half the total price of the swap....

**seth98esT** · 11-02-2006, 02:41 AM

If your staying NA use the 2g GS Spyder ECU or the 94 GS Galant ECU, both are setup for NA and coilpacks.

**DOHCstunr** · 11-02-2006, 09:21 AM

yeah no doubt.
i forgot about that. if you are a 94-95, then you ust need a GS ecu and the wiring is very minimal after that.
literally just wire up the cam angle sensor, and the coilpacks, and ignitor.
simple
oh, and of course you will want to wire up the knock sensor so you can make use of 93 octane and its timing capabilities.