i have access to a built 2.4l block w/ an evo 8 head not assembled yet. But the car is a 9. Are there any differences in sensors or anything for concern? Im guessing it would be best to drop the motor in an swap to an 8ecu an keep the 9 motor as it is. correct?

 

Yes. First of all, you'll need to pay attention to what year Ecu you use, as the 03 didn't have the ACD. You'll also need to get a pinout guide for both the 8 and 9. I'm reasonably sure that aside from the MIVEC they're almost identical, but do this just to be sure.

Just out of curiousity, is it possible to just use the 9 head with the 4g64 block?

 

well the thing is i cant really find any info on swaping the motor at all. eclipses only use 8 heads. I can only find one thread on a guy using a 9 head but there isnt much detail involved. So most of the info is somewhat heresay or opinions/preferences mixed with facts. So im trying to sift through it. Im also curious what exactly makes a 9 head mivec over the 8. is it more ecu programming and or mechanical differences as well(camshafts)?

 

Yes there is ^^^ what he said was exactly right

 

yes there is what?? there only one thread in reference to what im trying to research on

 

Ix's Have an extra cam position on the intake cam. From what I have heard there is also an extra oil feed going to the head for a ix, this is what pumps oil to the mivec cam gear. I would read a writeup someone did on an ams 2.3RR. I beleive that that motor is a 4g64 with 4g63 crank, they tell you about most of the small issues you will run into.

 

i don't think it would be much effort to tap the block for a mivec feed.

I am thinking of doing a 4g64 convert too.. or destroked 4g64. However, I have a bunch of research to do.

Just a lot less costly.

I can get the 4g64 block for 150-300

I just don't know what crank/rods/pistons to use.

Does anyone sell a complete rotating assembly for 4g64 evo converts?

 

a 2.3 is a 2.0 block with a 2.4 crank. any 2.3 kit is a 2.4 crank with rod length to fit the 2.0. A 2.4 block has a 6 mil higher deck and 1.5 mil larger bore.

The piston and rod choice is the most important part.

You're def gunna want that mivev op. And if you do take off the nine head and ecu I'll be happy to take it off you hands

 

well ive got a built 2.4, an a bare one, and an 8 head. :scratch: Id do a 2.3 but then the block would need a rebuild anyway. I really would rather the 9 head on that built block. Im watching SeanC's thread closely an pming him. But thats good to know theres interest in the ecu/head. But im hoping i can keep it. The hard part will be maybe finding a shop that wants to bother with modding the block.

 

I saw a post about SBR 2.4 blocks.. he mentions in a post about all it takes to convert a 2.4 block to work with mivec ix head is about 100$ in parts/lines/machining.

I think i'm going to call there and discuss with SBR.

I want to do a 2.4 also, but don't want to order wrong combos

I know I want to use a oem 100mm crank as listed on sbr website.

I want to build my motor myself.. And a lot of vendors don't put out all the info needed.

 

Agreed, cuz thered be more an more DIY'ers popping up. Post up your findings if you dont mind. Ill call em too. Also can you link to that post on the SBR blocks. i dont remember that part but maybe theres been alot more activity on that one that ive missed.

 

I have a 4G64 in my galant with an EVO 8 head. You use a factory 4G64 or eagle 100mm crank, a stock length EVO rod and a piston made for the headswap. CP, Wisco and JE all have sheft pistons to fit this application. For those of you looking to rev higher on the 4G64 magnust motorsports offers a very nice lineup of parts for this, its not cheap, but they are quality parts. By running their 2.4 liter "long rod" setup, you can rev the 4G64 to 8,000 rather than 7500, for me, it wasnt worth it, but for you, it might be if you got the extra cash. Magnus also makes a 2.2 kit to put into the 4G64 block, it allegedly revs safely to 10k, again, its all about what you need for your application.

Another common concern to clear up is the factory 100mm cranks are NOT HARDENED. There is no nitride coating on them, so you dont have to use a NEW crank. The crank in my motor was turned down .010 for a fresh journal surface and then micropolished, it works perfectly fine.

 

you on club 3g? The shortblock im getting;s built by RRE. it prolly should spin to 8k.

 

how about 4g64 block evo 8 head and crank

 

with that setup you would have to run a long rod, manley im pretty sure makes these off the shelf, and your final displacement would be around 2.1 or a little over depending on cylinder bore. That setup would rev to the moon safely, make sure you build the tranny.