3G74 swap

[panama323]

:lol:yesterday, i decided to put in the 3.5 engine in my 1994 3kgt base, i contacted a shop on ebay and they have the engine in stock, so far i think the only mods that i need is to swap my throttle body, and oil pan. i can wait to start on it

[x2xtreme360]

You're going to need the other half of that 3G to make this work


:lol:

[stealthee]

I was thinking the same thing. LOL

[panama323]

:pwell finally, i installed the engine .
for everybody that is thinking on doing this swap , you must get the engine from a debonair,4 door mitsubishi sedan or a gto, (japanese 3000 gt) some gto had this engine as an upgrade, this is a drop in the engine looks the same to a 3g72, same block but the heads are bigger. for the installation you must exchange your throtle body, and on the oil pan; i had to change the bolt patterns because the bolts were touching the crossmember. but after that it went smooth, sensors are in the same location, as my car its a 1994 3kgt federal spec.
the fuel pump works great, computer it is good , so no modifications on that part. tomo rrow i`ll post some pictures. see ya

[x2xtreme360]

There's a lengthy write up on the 6G74 (NOT 3G) swap that pretty much covers most of what you have to do.

6G74 3.5L Engine Main Swap details!...JOHN MONNIN'S PERSONAL 3000GT/STEALTH FAQ (http://www.wrenchjockey.com/Webpages/6G74swap.html)

[TUFFTR]

I need to correct you on a few points which are incorrect
- ONLY from a debonair.
- This is an upgrade for a 3000GT but they never 'had them' from the factory ever.
- Block is bigger, heads are NOT bigger, they are factory 3A heads, the same as 93-99 NA 3000GT's (confirmed in ASA)
many of these facts are floating around the internet already mate.
Good to see another 6g74'er

[jessecain1]

6g74 haha not 3g74. anyhow welcome aboard!

[whitedragon]

I need to correct you on a few points which are incorrect
- ONLY from a debonair.


Mine came from a Pajero.

[Hans@GZP]

Mine came from a Pajero.

Are you sure? The pajero has the exact same engine as my Montero and it isn't an easy swap. Many jdm places say they will work in a pajero or Montero, but they certainly aren't from one. It requires a lot of part swapping. If you didn't start with having a 3.5 in your car, the parts are really bard to come by (in the states) to swap a pajero/Montero engine into your 3.0 3s.

[TUFFTR]

Mine came from a Pajero.

Well if you want to get technical you CAN use a pajero block but you still need to find EVERYTHING else that attaches to it. The only thing you can use is the block itself AFAIK. Power steering and alternator brackets mainly, not sure about the lower intake manifold....pretty sire you can use the pajero one.

You cannnnn use it but getting a debonair one is a drop in process, i know cause I've done it. Not one thing needed to be modified, just another engine swap.

[MR2]

I totally don't trust any japanese guys to actually have any idea where their engine came from...i think they just make it up half the time.

I've had that It came from a GTO shit before too...rooooofll

[jessecain1]

I am with tufter on this one. if it drops right in it is of a debonair no if's/uns/or buts about it.

if anyone says otherwise they are simply misinformed. for how easy this engine is to drop in it's sad to see so much misinformation out there steering people away from it, becuase it trulely is a great option for the N/a guys.

i honestly would love to see a sticky for the 6g74 with all the correct info

[Boomer3000]

Are you sure? The pajero has the exact same engine as my Montero and it isn't an easy swap. Many jdm places say they will work in a pajero or Montero, but they certainly aren't from one. It requires a lot of part swapping. If you didn't start with having a 3.5 in your car, the parts are really bard to come by (in the states) to swap a pajero/Montero engine into your 3.0 3s.

Yes... Its was out of a Pajero...Swap was performed by Xwire...

[sublime_whatigo]

Well if you want to get technical you CAN use a pajero block but you still need to find EVERYTHING else that attaches to it. The only thing you can use is the block itself AFAIK. Power steering and alternator brackets mainly, not sure about the lower intake manifold....pretty sire you can use the pajero one.

You cannnnn use it but getting a debonair one is a drop in process, i know cause I've done it. Not one thing needed to be modified, just another engine swap.

I really don't know much about the swap but if the block is the same why can't you bolt all your 72 parts right up to it?

[MR2]

maybe we need to dig up some block part numbers so we ACTUALLY know what we have? no matter that the supplier says?

[TUFFTR]

I really don't know much about the swap but if the block is the same why can't you bolt all your 72 parts right up to it?

When you say "block is the same" what exactly do you mean here?
You can use your 72 power steering pump, alternator, pulleys and crank pulley, you NEED the power steering bracket and alternator bracket 100%. These are the hard parts to come by.

I'm using a 72 crank pulley and 72 power steering pump.

If your referring to the 74 DOHC Pajero block, then I am almost positive you need to change the oil pump as-well. It's basically a total stip down and refit with new and other parts. Even the heads are different in the Pajero/Montero version.

I'm even using 72 exhaust manifolds, bolt right up with some 1cm/$6 spacers from the exhaust shop to my SOHC downpipe. winnarrrr

MR2 - I'd love to get some Debonair VIN's to do this...might have to traul trademe.co.nz

[sublime_whatigo]

When you say "block is the same" what exactly do you mean here?
You can use your 72 power steering pump, alternator, pulleys and crank pulley, you NEED the power steering bracket and alternator bracket 100%. These are the hard parts to come by.

I'm using a 72 crank pulley and 72 power steering pump.

If your referring to the 74 DOHC Pajero block, then I am almost positive you need to change the oil pump as-well. It's basically a total stip down and refit with new and other parts. Even the heads are different in the Pajero/Montero version.

I'm even using 72 exhaust manifolds, bolt right up with some 1cm/$6 spacers from the exhaust shop to my SOHC downpipe. winnarrrr

MR2 - I'd love to get some Debonair VIN's to do this...might have to traul trademe.co.nz

I thought you meant the block was the same, thats what I was getting at, that they must be different.

[TUFFTR]

As far as that goes mate I honestly could not tell you and I don't want to spread false information.
My point being, even if you did find a montero block, finding the rest of the parts to make the whole engine work is a BIG PITA!

[GTwizard]

pajero yes and montero no. they are not the same. just a couple mods to pajero and it's in.

[Psychotron]

So what exactly are the proven gains of doing the 3.5 over the dohc 3.0 NA?

[whitedragon]

So what exactly are the proven gains of doing the 3.5 over the dohc 3.0 NA?

It's proven to make you enjoy your car alot more than when it had a 3.0L.

[Hans@GZP]

pajero yes and montero no. they are not the same. just a couple mods to pajero and it's in.

You do realize that they are the same vehicle, right? Pajero = Montero = Shogun in different countries. The 3.5 engines out of any of those models are all setup the same.

[Psychotron]

So an ebay auction for a 3.5L 6g74 that claims it was out of 3000gt in japan is false information? From what I can gather no 30000's came with a 3.5L right? I will seriously consider doing this swap if I can find the right info.

[stealthee]

100 percent false. All 3000GT's came with 3.0 V6's. They were 3 liter or close to it and consiedered them 3000 CC hence the name 3000GT. Had it come with a 3.5 it would have been the 3500GT.

Also there is no such thing as a 3000GT in Japan. They are GTO's there.

[GTwizard]

You do realize that they are the same vehicle, right? Pajero = Montero = Shogun in different countries. The 3.5 engines out of any of those models are all setup the same.

I believe you are quite wrong. Seen both. Not the same.

[stealthee]

Um. The Pajero is a Montero.

Mitsubishi Pajero - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Mitsubishi_Pajero)

[IPD]

from wrenchmonkey:

The BEST engine is a JSPEC 6G74 engine from a Front wheel drive Mitsubishi Debonaire, Pajaro, or Kia Grandure (mitsubishi made engine)
I would suggest that a JSPEC FWD 6G74 engine is the ONLY engine to consider, This web page is dedicated to this engine.
The Engine I recieved had a forged crank in it! That alone makes this the only engine worth considering!

not the same. same make/model, yes. same engine? no. close to the same engine? yes. but there's clearly differences. i say this because people have tried numerous varieties of DOHC 74 engine swaps & that data is reflected on john's page. some motors are direct plug & play; some aren't. and it's not purely a DOHC vs SOHC thing.

[Hans@GZP]

I believe you are quite wrong. Seen both. Not the same.

I've owned 2 Montero SR's with 3.5 DOHC 6G74 engines. They are THE SAME as a Pajero. The Pajero = Montero. Just like a Firebird = Camaro. I'm sorry you think that I'm wrong, but I've done tons of 3.5 swap 6g74's. The Debonair engine is FWD based and bolts right in. The Pajero/Montero engine is a royal PITA to get to work. Someone over seas did the swap with on of those engines and had coolant pipes running all over the place.

Pajero Engine

http://3.bp.blogspot.com/_DmIikJg8-yo/SKEkJLYTU3I/AAAAAAAAAAw/nte0QsjqsPo/s1600-h/V44+6G74+FR4WD+AT+PAJERO3.JPG

What the truck looks like that the engine is in.

http://3.bp.blogspot.com/_DmIikJg8-yo/SKEj16OAS-I/AAAAAAAAAAo/0gNrnkx7t3c/s1600-h/V44+6G74+FR4WD+AT+PAJERO1.JPG

That is the exact same as both Mitsubishi Montero SR's that I have owned/driven for years.

[IPD]

so the ultimate 3/s combo is debonair engine + diamante transmission. :D

[Hans@GZP]

What us the diamanté trans???

[jessecain1]

debonair is the only direct drop in.

[IPD]

What us the diamanté trans???

i'm using one. :D

[Emilie@GZP]

You mean an SR trans....from a GTO...

[IPD]

You mean an SR trans....from a GTO...

same diff. literally. both front and center. (see what i did there?)

[Emilie@GZP]

Hysterical. I'm rolling over here.

[trix]

what performance gains are there on the debonair motor? Anything that can be done to these motors without a ton of hassle? eg turboing? any hard numbers?

[TUFFTR]

what performance gains are there on the debonair motor? Anything that can be done to these motors without a ton of hassle? eg turboing? any hard numbers?

Standard at the fly 25kw more and 330nm of torque.
Its the same hassle you'd go through turboing a 3L, The engine is the same....just a bit higher.
Really gotta finish that 6G74 FAQ

[Boomer3000]

Potato :suspect: