4G63 Head

[buckchuck27]

if i swap the head from a 4G63 on my 64, what gains or whatever would i get out of that?

[crazy_ugly_coyote]

the swap is more trouble than is worth unless you turbo it. you have to plug a few oil ports, and reprogram your ecu.

[Sleepr awd]

if you turbo it though, its like making a 4g63 huge...the combination i heard of results in the 2g,
4g64 dohc engine, turbo'd 15psi and 92 octane and the guy ran the same time as that engine on his previous 4g63 w/ 30psi and race gas.......def. worth it w/ turbo

[dickswhip00gs]

but what about the 4g64 engine being flipped around... wouldnt intake and exhaust valves be flipped too?

[Sleepr awd]

uhhhh, that would require more work than is necessary, you'd have to redo mounts to the frame and redo the transmission and driveline....not beneficial

[crazy_ugly_coyote]

the valves are still in the same place.

[dickswhip00gs]

leave the stock head, it is fine the way it is. you'll already get good hp #s with johnny b's turbo kit.

this "thread" is old, i know ive read about this before somewhere on this site.

[buckchuck27]

where can i get a head from an evo 8 cuz ive heard they have some extra R+D into them. i prolly will end up not gettin it but i f do could some one tell me.

[crazy_ugly_coyote]

the evo 8 head is the 4g63 engine block. if you are going to put that much work into doing a head swap just sap the engine. the evo 8 will drop right into place. the tranny and everything else matches up. just have to change the electronics, and some custome exhaust work.

[Sleepr awd]

evo 8 doesn't drop right into place you have to redo mounts, get a working transmission for the engine, redo the drivetrain and isn't worth the work,

just find the dohc setup froma 4g63, ANY 4g63 from 1990 to 2005 in the eclipse GS(90-94) turbo Eclipse GST(95-99) or a scrapped (heaven forbid ) evo 8 (2003-2005)

[buckchuck27]

but isnt the cam gears on the opposite side that i need them to be? if i switch it around where woudl i but the intake manifold? or am i just completely wrong?

[crazy_ugly_coyote]

the evo does line up with our transmission, and only one motor mount needs to be replaced. if you need the proof i can give you contact numbers to people that have already done it from the j-spec eov's.

[Sleepr awd]

alright. i looked, it does i was thinking of teh v6....:-/ eh still it is more cost efficient to turbo what you have than to swap in a 5k $$ setup when you can just use 4k and boost close to 300whp when the 4g63 will cost 5k or more to swap in and has only 250whp (evo 8 setup on fwd)

[buckchuck27]

would i have to replace the injectors if i drop a turbo in my shit? if it do, how big would anyone suggest? also i heard from some kid that i would have to reprogram my ecu. would i and how would i go about doin this?

[johnnyBgood]

The EVO8 head will fit the 3G 4G64. Some oil holes will have to be filled in. As far as the ECU questions, this is not something that I have ever done, so I cannot say what needs to be done. But if you have invested that much money into your car for a turbo kit and DOHC head, I would suggest a Standalone engine management system.