Club3G Forums - View Single Post - TampaBlue's "Eclipsed(EVO)" project.-Phase 1/DOHC research

00TampaBlueGS · 11/21/2006, 06:19 AM

I'm beginning some pretty intesive research on a DOHC head swap on my 4g64.
I've been a member of this site since March of this year (2006), shortly after buying my car. In that time I've read many things about how well this engine handles boost in its stock form, the fact that it has pretty tough (forged steel?) internal components, blah, blah, blah.

On thing has continued to intrigue me, though: The possibility of swapping my head for that of an Evo or even (I've heard) a Kia Optima!?

This would correct what I see as a pretty grevious error on the part of Mitsubishi Motors...

They gave the 3g platform a V6 as their "performance" engine, phasing out the DOHC 4g63 variants and sticking us 4-bangers with an "economy" single-cam 4g64!....

I'm now considering correcting this error. I know it's been done before by a few of our still-active members, so I'm hoping for their guidance through my next 10-12 months of research.
I'm very new to the "car hobby", but I'm spreading myself over a wide number of websites and reading material now with the intent to learn as much as I can about all the components involved.
I also plan to go FI a little futher down the line, but for now I'm using this thread (and this site) to "log" my research and findings, outsourcing and referencing my research for others to see.
I'm also hoping to get some measure of help from other members. However, I've purposely started this thread during this site's less active period!! I'm hoping to avoid too many less informed "comments from the peanut gallery". I'd like this thread to serve, as much as possible, as a concise and informative reference for building on the power of the 4g64.

I'm considering the option of "building" the engine from the crank up, though I'll likely just start with the head swap. I've heard there's a "six bolt" as well as a "seven bolt" variant, though I may be misinformed. Like I said, I'm not entirely familiar with what's involved, but I'm giving myself a full year to learn.
Anyone want to help? I could sure use some input on some of the specifics involved/parts needed....from someone who's done a similar build!
(you know who you are)

11/21/2006, 06:19 AM	#1 (permalink)
00TampaBlueGS imiTatum Join Date: Mar 2006 Location: Denver, CO Vehicle: 2000 Eclipse GS 5-spd. Posts: 4,367	TampaBlue's "Eclipsed(EVO)" project.-Phase 1/DOHC research I'm beginning some pretty intesive research on a DOHC head swap on my 4g64. I've been a member of this site since March of this year (2006), shortly after buying my car. In that time I've read many things about how well this engine handles boost in its stock form, the fact that it has pretty tough (forged steel?) internal components, blah, blah, blah. On thing has continued to intrigue me, though: The possibility of swapping my head for that of an Evo or even (I've heard) a Kia Optima!? This would correct what I see as a pretty grevious error on the part of Mitsubishi Motors... They gave the 3g platform a V6 as their "performance" engine, phasing out the DOHC 4g63 variants and sticking us 4-bangers with an "economy" single-cam 4g64!.... I'm now considering correcting this error. I know it's been done before by a few of our still-active members, so I'm hoping for their guidance through my next 10-12 months of research. I'm very new to the "car hobby", but I'm spreading myself over a wide number of websites and reading material now with the intent to learn as much as I can about all the components involved. I also plan to go FI a little futher down the line, but for now I'm using this thread (and this site) to "log" my research and findings, outsourcing and referencing my research for others to see. I'm also hoping to get some measure of help from other members. However, I've purposely started this thread during this site's less active period!! I'm hoping to avoid too many less informed "comments from the peanut gallery". I'd like this thread to serve, as much as possible, as a concise and informative reference for building on the power of the 4g64. I'm considering the option of "building" the engine from the crank up, though I'll likely just start with the head swap. I've heard there's a "six bolt" as well as a "seven bolt" variant, though I may be misinformed. Like I said, I'm not entirely familiar with what's involved, but I'm giving myself a full year to learn. Anyone want to help? I could sure use some input on some of the specifics involved/parts needed....from someone who's done a similar build! (you know who you are) __________________ My Ride, gradually evolving... My ambitious "Eclipsed(EVO)" plans for my GS: PHASE 1 -DOHC research__(n00bish fumblings) First documented AWD 3G_(local inspiration) messing w/ Evo 8 gear____(turbo options) See where I'm going with this? ...right back into debt. Last edited by 00TampaBlueGS; 11/21/2006 at 06:21 AM.