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Replacing turbo 4G63 head with non turbo 4G63 head

Well, after a long time out and because i had so many problems with my GVR-4, which made me to store it almost all 2010 year long, but i hope this 2011 things go much better.
My engine was opened several times, done a lot of work but always got the same result, after turning on engine, it start to burn oil, blue smoke came out the exhaust. When they opened the engine, again it looked like a 500.000 miles engine. Unfortunately, some other things got damaged including front windshield, lost the right dog leg, etc, it got advantage and now a lot of money is required to put it ok again.
Now is in another workshop and all the work is going to be done one more time.
I was lucky, yesterday i could get a 1994 E33A Mitsubishi Galant ZX, it looks like the AMG Galant, so i have good parts to use in my GVR-4, including hood and rims which i like much more than the stock ones. This might not be a great thing if i would live in the US, however in my country those Galants are very rare, no other VR-4 and E33A are very few. So now i have a part out car <img src="/ubbthreads/images/graemlins/rofl.gif" alt="" />

My initial question here is:
I suspect that the head of my 4G63T engine is not working ok, now i have another 4G63 N/A engine and it is almost for sure that head is in better shape so can i swap them? any mod should be done?
should i swap cams too? both of them?
All your comments will be apreciated.

Pd: I couldn't log in using my previous account so i had to open this new one but i'm the same person.

Andrés.
 
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this is the 1994 Galant ZX E33A AMG style i bought yesterday, i'm using it for parts to my GVR-4




side to side...

 
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A non turbo 2.0 head is the same as a turbo 2.0 head. But the cams are different. I'd take the turbo cams and put them in the non turbo head and run it. I'm not saying this will fix the problem though. Blue smoke means you are burning oil, which could be the result of either bad valve guides/seals, or bad piston rings, or a bad turbo, or a combination of these.
 

turbowop

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Interesting. Your new Galant looks basically like a LHD JDM model. None of those parts are AMG related, but it's pretty sweet you have all the JDM body parts right there in one package to swap onto your good GVR4.

*edit* I just noticed the wing. I guess one part is AMG related. Weird combo.
 
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Not only the wing, also the seats has the grey colour in the middle, the hood has the vents and wood imitation parts on doors interior, i've seen those only in AMG Galants.

The N/A head will be inspected and i would change all parts that need to be replaced such valves, guides,seals, is just turbo head is been machined many times already, the N/A head is out by the very first time and looks much better. Maybe i will swap bumpers too, US Galants bumpers are very heavy, the other galant bumpers are less than half weight, just need to fix the front one.



 

The bottom of the blocks looks different, the N/A has a weird part than the turbo doesn´t.
The last owner of the N/A was rebuilding that engine and looks ready to build while turbo block needs machinery job, new rings etc, i was considering to use that block and swap crankshaft, oil pump and what ever is different to save some money for now. Later with more time and founds i can prepare ther other block with forged internals and put it back to the GVR-4.
Anyone knows if that block swap can be done easily?
What other parts should i swap?

4G63 T block


4G63 N/A block
 

I'm not sure right now if i will use it, first i need the car running, then i'll see if i use it or sale it, however as i live so far from the us, mailing parts overseas is always complicated and expensive.
 

grocery_getter

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Jun 20, 2004
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Kent - industrial suburbs of Seattle, WA
Your new motor is a 7 bolt, not a 6 bolt. Evidenced by the main girdle and the shape of the hydraulic tensioner (on the left corner of the picture). Take a picture of the middle main bearing cap side profiles from both side of it. I think it still use the attached thrust main bearing style, which is early 7 bolt style. Check for wear mark on the crank middle thrust area too. If it is the early style 7 bolt with attached thrust main bearing style, don't use this block for rebuild.
 

ok thanks for your advise, block is on the ZX now, i will have to wait until is removed to take the pictures.
In case it is a early 7 bolt, can i use just the head?
 

fuel

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Toronto, ON, Canada
Quoting turbowop:
Interesting. Your new Galant looks basically like a LHD JDM model. None of those parts are AMG related, but it's pretty sweet you have all the JDM body parts right there in one package to swap onto your good GVR4.

*edit* I just noticed the wing. I guess one part is AMG related. Weird combo.



It has the USDM specific front grille, JDM VR-4 Evolution hood, JDM 7th gen (facelift) Galant/Eterna rims. definitely a bit of a mish mash.
 

grocery_getter

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Kent - industrial suburbs of Seattle, WA
Yes but also verify that the hole for the head bolts are fit for 12mm diameter fastener, if you want to use the head with a 6 bolt block.
 

524of1000

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574
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San Antonio, Tx
You *can* use a 7 bolt head with a 6 bolt block, but it requires some modification, the head stud holes for one need to be enlarged. You may also need to make accommodations for the CAS, but I don't remember. There are other differences I just can't remember them at the moment. As far as the non turbo cams, I actually chose them over stock turbo cams due to the slightly longer duration and they work great.
 

AnotherNewb

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Apr 25, 2010
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1,472
Location
Orlando, FL
You also have to enlarge an oil hole. The 6bolt cas bolts right to the 7bolt head, no mode.
 

first inspection showed both heads are the same. No differences on holes, sizes, it looks the other engine is a 6 bolt or 7 bolt with 6 bolt head.
Tomorrow they are coming to my place to check that other engine as it looks like ready to bolt on, i might use it and can take my time to build something very good with my 4G63T engine. If it fit, that's it, i need a car i can use soon because the VW needs work too and i have already the turbo kit ready for that one.

I don't think compression ratio would be a problem, here because of high altitude (almost 9000 feet above sea level) that problem can be easily solved with head gasket, in fact we made 2 years ago another VW VR6 Turbo and engine wasn't opened, just oil pan for turbo lubrication return, and it makes 17 psi with no issue yet. At sea level things are very different.

Let's see what happens tomorrow after the mechanic inspects the N/A engine to check if is ready and can have my car running by friday, even if i can´t use too much boost, 10 psi with stock compression will work great for what i need it now.
 

It's a go... N/A engine is already inspected and it is ready to use, so i choose it for now as i don't have to expend a lot of money in this moment and can allow me to have a useful car soon.
The turbo engine will receive high performance parts and i hope to have it ready by the end of this year.
I´ll let you know how it works. I have already some previous experience as i had another N/A Galant few years ago and it was turbocharged with TD05H 14B and was a very fun street car.
 
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