4g64 questions

[sheeet]

first of all from all i have a 90 gsx.
from what ive read a 6 bolt 4g64 crank should be a direct fit, adding .48 stroke.

that being said ive also searched and got countless makes and models of cars. bothered the local salvage yard several times, only to get to the car, and it not have a 4g64.

for god sakes someone please give me a list, im tired of looking like an idiot.

 

[srpjosh]

97-99 GS Spyder Eclipses had 7-bolt 4G64's. Single cam head though.

 

[sheeet]

would i not require a 6bolt?

 

[srpjosh]

I don't believe so, but I'm not 100% sure. Sorry.

 

[2slow4utsi]

If you have a 90 gsx you need a 6 bolt crank. The 6 bolt 4g64 cranks are being sold on here look in the classifieds. Try to get one that hasn't been turned.

 

[DashLaflash]

The 4g64 is not a 6 bolt it is a 7 bolt 2.4 liter engine. You need the g4cs which is the 6 bolt 2.4 liter. You can find them in the really early Hyundai sonatas I believe. Just do some searching on g4cs and the cars they come in. If you put the g4cs crank in your '90 4g63 engine it be a stroker build. I'm not sure if that's what you're looking to do or if you just want the 6 bolt 2.4 liter which is the g4cs. Here is a link you might wanna look at. http://www.dsmtuners.com/forums/stroker-tech/100677-looking-4g64-g4cs-answers-look-here.html

 

[srpjosh]

Why does the 90 GSX NEED a 6-bolt? That is something I've never heard before.

 

[sheeet]

that helps me alot, i've been looking for the wrong damn engine.

yes im intending on building a 2.4 stroker.
still have no idea and need to research wristpin position on these dimensions.
not to mention compression.

however i do have my turbo, which i bought and was told it was a fp rebuilt 18g.
its definitely got a very aggressive wheel on it compared to the stock 14b.
and its ported to like 2.25 inches i believe when i measured it.
not looking to turn alot of rpms really, hoping the stroke and displacement will help me spool faster and i wont really need to.

 

[spawn7037]

Why does the 90 GSX NEED a 6-bolt? That is something I've never heard before.

The six bolts have the mounting points on the block, the 7-bolts have mounting points on the transmission. The 90's only came with 6-bolts so its going to be alot easier to install a 6-bolt motor.

 

[BK85]

The mid 90's Galant had the 4g64 motor.


BK85

 

[dylnwit]

The other nice thing about sticking with which ever style of engine you have is all your parts will bolt right up. If I pulled a running g4cs short-block (pistons, rods, crank, and block), and bolted up everything (including a few odds and ends that have to be from one or the other), it would drop right in and run, compression would be a lot higher (from what I've read on here, it would be around 11:1) if I were to leave the stock pistons and use the 4g63 head, but it would run just fine on low boost.

 

[sheeet]

i was just going to put the crank in my 4g63..

wasnt aware the head would bolt up to that block, i thought the g4cs would be timing chain.

 

[sheeet]

ok, judging from what i just dug up on here and what that dude said, the 4g63 head does bolt up to it.
lacking oil squirters, 2 coolant holes, and knock sensor?

anyways i'll call the yard tomorrow and get him to dig one up.


i keep gaining more, yet less direction at the same time.. haha.

 

[DashLaflash]

Well if you put the g4cs crank in your 4g63 you will be building a 2.3 Liter stroker motor. You will need some stroker pistons and forged rods but this can all be fit into your 4g63 block without needing a 2.4 liter block. Its gonna be up to you if the .1 liter of displacement is worth the g4cs over the 4g63. Not trying to steer you in one direction over the other, just letting you know all your options.

 

[blackrosenova40]

Wrong , I got a 4g64 6 bolt right out of a Dodge Colt Vista, punched in the block it says 4g64.

The 4g64 is not a 6 bolt it is a 7 bolt 2.4 liter engine. You need the g4cs which is the 6 bolt 2.4 liter. You can find them in the really early Hyundai sonatas I believe. Just do some searching on g4cs and the cars they come in. If you put the g4cs crank in your ’90 4g63 engine it be a stroker build. I’m not sure if that’s what you’re looking to do or if you just want the 6 bolt 2.4 liter which is the g4cs. Here is a link you might wanna look at. http://www.dsmtuners.com/forums/stroker-tech/100677-looking-4g64-g4cs-answers-look-here.html

 

[Strm Trpr]

If you are building a 2.4L using the 6-bolt 4G64/G4CS block, then it's not a stroker unless you change the crank.
You can build a 2.4L with the 100mm crank, 150mm rods and stock pistons with a compression height of ~35mm.

Or, you can build a long rod 2.4L using the 6-bolt 4G64/G4CS block, 100mm crank, 156mm Manley Rods, (found at SBR) and custom 4G64 pistons with the wrist pin moved up 6mm.

Use the 6-bolt platform because all of your parts on your 90' 6-bolt 4G63 will swap right over.

The 1g head will fit perfectly on a 6-bolt 4G64/G4CS block without the need to plug any oil drain holes like the 7-bolt 4G64 Block/4G63 Head build.

Here's a list of 6-bolt 4G64 donor cars that RRE uses for their Road Racing 4G64 motors.
Mitsubishi 2.0 to 3.0 Engine Applications, '88-95

 

[mrTalonAWD95]

4g64 and 4g63 rods are forged from the factory..

 

[sheeet]

ok i went and looked at an 89 sonata in the yard just now and it had a 2.4.
i couldnt find anything like an engine code on it, on the underside of the hood it had a sticker that said something about khy2.4v. im still not sure im looking at the g4cs..

 

[Strm Trpr]

According to RRE's site on Mitsu Engine Applications, you could be looking at a G64B.
Mitsubishi 2.0 to 3.0 Engine Applications, '88-95
And another site confirming RRE.
Mitsubishi Remanufactured Engines

Remember, Hyundai and Mitsu are partners, and Wiki verified this for the 89 Sonata.
Hyundai Sonata - Wikipedia, the free encyclopedia

This site shows the 89 Sonata having a G4CS.
Hyundai engines & short blocks

 

[sheeet]

alright well wiki says there it came with a 2.0-2.4 i4 and a 3.0 v6.
seeing as that was a 2.4 i couldnt imagine it not being a g4cs, i just wish it had the little engine badge on it for verification haha.
anyways im going to try to get them to pull that car out for me and ill let you guys know if i have anymore questions.

thanks alot strm.

 

[BoostedTalonTS]

The 4g64 is not a 6 bolt it is a 7 bolt 2.4 liter engine. You need the g4cs which is the 6 bolt 2.4 liter. You can find them in the really early Hyundai sonatas I believe. Just do some searching on g4cs and the cars they come in. If you put the g4cs crank in your ’90 4g63 engine it be a stroker build. I’m not sure if that’s what you’re looking to do or if you just want the 6 bolt 2.4 liter which is the g4cs. Here is a link you might wanna look at. http://www.dsmtuners.com/forums/stroker-tech/100677-looking-4g64-g4cs-answers-look-here.html

I have to disagree as well... I currently have 3 6-bolt 4g64 blocks (one of them I'm running now, pics are in my sig).

A true 6-bolt 4g64 block that is a 100% bolt-on to our 2.0L 4g63 head (without having to plug any oil drain holes like in the case of the Hyundai 4gcs) was available in early 90 cars. These can be found in:

Eagle Summit
Mitsubishi Expo
Dodge Vista Colt (as previously mentioned)

All of these are SOHC motors, but some are 6 and some are 7-bolt motors, depending on the model year... Like the 2g DSMs, they went to a 7-bolt motor towards the end of production. THe easiest way to tell them apart is to look at the forward motor (or tranny) mount. If it bolted to the block then it's a 6-bolt... If it is bolts to the tranny then it is a 7-bolt motor (as mentioned earlier).

If you just want to go with a stroker setup (2.3L = 4g64 crank in a 4g63 block, with different pistons) then you can find a crank in any of these motors that will work, otherwise, I'd just build up a 'hybrid' 2.4L: 4g64 block & crank with a 87mm bore (.020" over) of 100mm strokey goodness -There is less machining required on the 4g64 block if you are going 2.4L vs that of a stroker... The 4g63 block needs to be internally clearanced for the taller stroke of the 4g64 crank & con rods.

Either way, good luck!

 

[sheeet]

thanks for clearing that up, althoguh i ran that on the hotline around here locally and couldnt find the 4g64 motor.

however there is a g4cs core not far from here that i am going to look at later.
i suppose im not worried about the oil drain holes, and am going to look into drilling the coolant holes that have been called to my attention.

either way im just tired of searching for the 64 and am happy to have found the hyundai

thanks for clarifying that info about the 64, there is alot of bs around.

 

[g_ferg]

thanks for clearing that up, althoguh i ran that on the hotline around here locally and couldnt find the 4g64 motor.

however there is a g4cs core not far from here that i am going to look at later.
i suppose im not worried about the oil drain holes, and am going to look into drilling the coolant holes that have been called to my attention.

either way im just tired of searching for the 64 and am happy to have found the hyundai

thanks for clarifying that info about the 64, there is alot of bs around.

You don't have to drill anything out on the g4cs or even block drain holes on that block......

 

[Mr PopUps]

Why does the 90 GSX NEED a 6-bolt? That is something I've never heard before.

The six bolts have the mounting points on the block, the 7-bolts have mounting points on the transmission. The 90's only came with 6-bolts so its going to be alot easier to install a 6-bolt motor.

Smaller journals on the 7 bolt, and the main caps are a 1 piece deal on the 7 bolts, not so on 6's. Youll never fit the 7 bolt crank in the 6 bolt block.

 

[sheeet]

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89 sonata. 4gcs?