mot_bot

Im just curious as to if the 1g and 2g 4g63 valves are any different. I cant remember if evo 1 4g63's use 1g or 2g parts.

It would seem that they would use 1g parts to be correct with the era, but I seem to think when I got the waterpump for it I had to get a 2g as the 1g wouldnt fit.

thanks,
Mathew

MRpunk

I am almost certain that the valves from the 1g and 2g are the same. If I remember correctly the rocker arms and valves are both identical. I think its just the lifters that are different. The 1g has a smaller hole in the top of the lifter then the 2g. Let me double check on that and I'll get back to you.

still*boostn

iTrader: (15)

if this helps i just took my brand new daul springs and ti retainers off my 1g 6bolt head and has them put in my evo 9 head(they were new.).

when i asked supertech if the springs could work in the 9 head they said yes, that they are exact same heads,... so i would think the answer toy our question is yes.

mot_bot

thank you for the feedback everyone

94AWDcoupe

iTrader: (125)

the valves interchange just fine. but evos from 1-9 came with a filled exhaust valve that copes with heat better. it will have a 6N on the face of valve. the intake will have 6T. all the 1g and 2g cars came with 6T intake and exhaust.

Yota Eater

iTrader: (12)

DSM 1G
Intake valve: MD127840
Exhaust valve: MD127841
Valve springs: MD139243

DSM 2G
Intake valve: MD127840
Exhaust valve: MD127841
Valve springs: MD185870

EVO 1
Intake valve: MD127840
Exhaust valve: MD184078
Valve springs: MD185870

EVO 2-3
Intake valve: MD127840
Exhaust valve: MD130164
Valve springs: MD139243

EVO 4-7
Intake valve: MD127840
Exhaust valve: MD184078 (sodium filled)
Valve springs: MD139243

EVO 8-9
Intake valve: MD127840
Exhaust valve: MD184078 (sodium filled)
Valve springs: MN158946 (beehives)

mot_bot

hmm interesting, and kinda ****ty. where did you get those sources from? Considering others have interchanged dsm and evo 9 valves(same as evo1) would it technically be fine?(just wont be sodium filled)

its jsut there is quite a noticeable difference on valve pricing on 1g and 2g vs evo 8 :/ and im really pinching here

Yota Eater

iTrader: (12)

My source is the Mitsu ASA progs (JDM and USDM) current up to JAN 2010. Its true that you can mix and match the parts, but installing the EVO 8/9 parts is the best from stock selection.

mot_bot

Thanks for the response. Although I would like to have gotten the correct evo valves money didn't allow me to so I'm waiting for some dsm valves. Thank you everyone for your input