2G Head? What year engine? HELP!! [Archive] - DSM Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum: DSMtalk.com

: 2G Head? What year engine? HELP!!


Speedemon636
02-09-2011, 09:34 PM
Just confirming this is a 2G head..?
http://i1103.photobucket.com/albums/g480/Speedemon636/0207011427a.jpg?t=1297311868
http://i1103.photobucket.com/albums/g480/Speedemon636/0128011546-1.jpg?t=1297311928
http://i1103.photobucket.com/albums/g480/Speedemon636/0129011403a-1.jpg?t=1297311894

I'm trying to figure out the head and year of the engine. it's a 6-bolt, but I want to know the year. Under the water pipe it says "4G63 KC0289" and where the trans mounts onto the engine it says "356 G1-561". I need to know yesterday.. The company refunded some money for the swap because they mis-listed the engine and they keep calling about every day wondering if I ordered the parts yet. PLEASE HELP!:wall:

ET93
02-09-2011, 09:45 PM
You can verify the year of the block but I'm not sure how you would verify the year of the head.

The vin for the block is on the flywheel side on a flat plate that is above and inbetween where the top two tranny bolts bolt up to the block, it's difficult to find and you will need to clean it. The vin looks like it was etched on with a toothpick but trust me it's there. It took me forever to find it on my block and I can take a picture of it when i get home for you if need be.

To decode the vin use this link http://www.vfaq.com/mods/VINs.html

Hope this helps.

EDIT: just found this link and it should help you on verifying that it is a 2g head. But agian I'm not sure on how you could verify the exact year of the head.
http://www.vfaq.com/mods/1G-2G_intake.html

90BLACKAWDTSI
02-09-2011, 10:20 PM
1g intake manifold=1g head.

Sinluien
02-09-2011, 10:23 PM
Well with the cas on the left, and if theres nothing on the intake cam gear that looks funny, i would say its a 1g, and not a 90 with that CAS. The ports look like a 1g as well The intake manifold is also a 1g.

Dammit he beat me.

ET93
02-10-2011, 12:29 AM
http://www.dsmtalk.com/gallery/data/500/medium/vinmn.jpg

This is on the right rear side of the motor. If you don't clean it, you won't see it. The bolt that you see below is the left of the two top transmission bolts the mount onto the block.

Speedemon636
02-10-2011, 11:34 AM
Thanks for the information everyone. I found the vin on the block and turns out is a 1990 "auto seatbelt" 1G FWD 2.0 turbo. Will this still work in my '97 GSX?

DSM Loki
02-10-2011, 11:38 AM
It'll work, you just have to do a bit more work than just bolting it in.

http://magnusmotorsports.com/wp-content/uploads/2010/02/1gina2g.pdf

Gamble
02-10-2011, 12:05 PM
Go with a 2g/7bolt head on a 6bolt block. Best combo.
IIRC the 1g head on the exhaust side all the studs for the manifold are the same. On the 2g the 2 outter ones are bigger.

2LiterRiceEater
02-10-2011, 12:41 PM
^ I think the same can be said about a 1G 7-bolt, but I don't remember exacly. And I'm too lazy to dig my spare head out of the garage and check :P

Speedemon636
02-10-2011, 08:11 PM
Okay so I'm sure it's a '90 2.0 turbo with the 1G head. I'm FINALLY ready to order parts! Thank you to everyone that helped!! Hopefully I'll be able to post up some pics soon of the engine actually IN the car lol.

1995gsteclipse
02-10-2011, 09:36 PM
Okay so I'm sure it's a '90 2.0 turbo with the 1G head. I'm FINALLY ready to order parts! Thank you to everyone that helped!! Hopefully I'll be able to post up some pics soon of the engine actually IN the car lol.

It could be a 1g Head, But that intake manifold is a 2g.
You have a 1g exhaust Manifold as well, I would recommend you to use a 2g or an evo 3 exhaust Manifold which has bigger runner, flows more air, (less restriction).

Speedemon636
02-10-2011, 09:52 PM
Dang. Now you're making me second guess myself. The throttle body flap is pretty big like the 1G (maybe 2 or 2 1/2in across) and the exhaust side holes coming out from the head are 2" by 1 1/4". Is that 2G?

90BLACKAWDTSI
02-10-2011, 09:52 PM
It could be a 1g Head, But that intake manifold is a 2g.
You have a 1g exhaust Manifold as well, I would recommend you to use a 2g or an evo 3 exhaust Manifold which has bigger runner, flows more air, (less restriction).

Definitely not a 2g intake manifold.

CrackedDSM
02-10-2011, 09:54 PM
It's a 1G manifold drilled and tapped for an MDP sensor. It's a 1G head. Or if you want to know for 100% sure, take the intake manifold off and you'll be able to tell right away.

90BLACKAWDTSI
02-10-2011, 10:00 PM
To the OP, everyone has told you what you have and what you need to do. I believe I even told you in a pm what to do. Rip that head off that block, put your 2g head on that block along with your 2g intake manifold to make the swap easier. Stop second guessing yourself and everyone here telling you what you have. Your only concern should have been with the block. 6bolt, done.......

ET93
02-11-2011, 12:02 AM
If the throttle body is almost 2 1/2 in then it's a 1g, the 1g throttle body is 60mm and the 2g is 52mm. 1 in = 25.4 mm

1995gsteclipse
02-11-2011, 08:31 AM
If the throttle body is almost 2 1/2 in then it's a 1g, the 1g throttle body is 60mm and the 2g is 52mm. 1 in = 25.4 mm

Throttle body could be 1g but Intake is 2g (can be a 2g ported intake),
If I am not mistaken it has a map sensor on top of the manifold, 1g does not use map sensor.
Sorry I just looked at the pic and map sensor is not on the wright position, (some one might weld the intake to fit the map sensor)
Sorry about the mistaken, (it is a 1g intake).
What I am so sure about is your exhaust manifold (definitely is a 1g)
runner are so tight (small).