To my understanding... ALL 7 bolt 4g64 cranks are the same from 93-99, and they share the same rods with the 4g63 7 bolt series.
According to SBR, the 4g64 pistons are compatible from 93-99. They are the same as 4g63 pistons, just 86.5mm vs the 85mm that the 4g63 uses standard.
My problem was that Hollander Interchange said that the 99-2003 4g64 blocks from the Galant were the same, so I thought pistons for a "2000 4g64" would work... apparently not!
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Well I have the pistons up for sale with a set of rods, and a 4g64 polished crank I have. I've had a couple email me about the setup, only one of them building an engine in a 2000+ Galant.
I'm going to order a set of Wisecos, water pump, oil pump, gasket set on "Black Friday" to help take advantage of some savings. Hopefully I'll turn a little profit with the rotating assembly I'm parting out.
Well I have the pistons up for sale with a set of rods, and a 4g64 polished crank I have. I've had a couple email me about the setup, only one of them building an engine in a 2000+ Galant.
I'm going to order a set of Wisecos, water pump, oil pump, gasket set on "Black Friday" to help take advantage of some savings. Hopefully I'll turn a little profit with the rotating assembly I'm parting out.
I'll post more when I have more to post I guess.
keep us updated, I'm going to the junkyard to pick my 4G64 up tomorrow, i was going to go with the G4CS out of the 1989-1992 Hyundai Sonata BC it's a 6-bolt, but after calling every junkyard in the surrounding 200 miles to no avail, im just going to settle for the 4G64 7-bolt setup and just build that, i don't see any proof of 7-bolt 4g64's walking more than 6- bolt 4G64's. maybe i can pick one up cheap.
so from what i understand everything from a 4g63 bolts up to the 4g64, i just need intake and exhaust cam gears from a 1994 DOHC 2.4 GS Galant and a timing belt kit for a DOHC 4g64, and a OEM headgasket for a DOHC 4g64.
some questions...
1) what pistons work, i realize that they need to be 86.5mm but what compression should be used
2) what Rods, i realize that Rod size ratio is 1.7 on a 4G63 and 1.5 on a 4G64, so which ones should be used?
I'm hoping for a final compression ratio between 8.0:1 and 8.8:1
You can use 4g63 cam gears, just need to degree them properly. More info can be found here: 2G Turbo Head Swap on a 4G64
Also, I'm still trying to figure it out but I was told by (I believe Joe) at SBR that the Cometic 4g64 gasket will work with the DOHC 4g63 head. The rods on a 4g64 are the same as the 4g63, so you can use the eagle h-beams form the 4g63. I'd recommend buying a 98-99 4g64 block because it uses the split thrust bearing. I paid $175 delivered for my block from Ohio.
You can use 4g63 cam gears, just need to degree them properly. More info can be found here: 2G Turbo Head Swap on a 4G64
Also, I'm still trying to figure it out but I was told by (I believe Joe) at SBR that the Cometic 4g64 gasket will work with the DOHC 4g63 head. The rods on a 4g64 are the same as the 4g63, so you can use the eagle h-beams form the 4g63. I'd recommend buying a 98-99 4g64 block because it uses the split thrust bearing. I paid $175 delivered for my block from Ohio.
Ok im going to the junk yard this weekend and want to know for sure what year to get my 4g64 block out of that I can use a 2g head on in my 1g with the least amount of B.S for me to do please!
1, I'm not sure how difficult it would be to use a 98-99 block in your 1G. I don't know anything about the 1G cars.
2, I am planning to use that same gasket need2boostpsi
3, No I don' have a picture of the degreeing for use with the 4g63 cams. I was told by a guy on another forum that you can use two OEM 4g64 cam gears from any 2g 4g64, or adjustable 4g64 cam gears from Ebay with no problem, but I've never looked it up as I'm going to stick with 4g63 adjustable gears.
4, According to Parts Lookup at AutoZone, and O'Reilly Auto Parts... NGK 7084 works for both engines but that's probably just a standard OE Replacement guess. I'll look more into that when I get home from work, around 6:00am CST.
so i picked up my 4G64 yesterday from a junkyard in Springfield, MO about 90 miles away. it had been sitting in the weather for about a month so i thought rust was going to be a problem. tore the motor down all the way last night, found the cause of death, BS belt broke and got tangled into the Timing belt causing the the motor to bend valves . things look great on the inside, hardly any bearing wear at all, the motor has a knock sensor which i thought NA's didnt have, also this is a 1994 DOHC 4G64. I'll post some pics up if you guys want.
I just ordered my Wisecos from Oliver at Slowboy. It went very well, and he is a pretty awesome guy, with no mis-communication, or trouble at all.
I was trying to get it done on Saturday but it was just a bad day. I ordered a set of 87mm, which is .020 over for the 4g64.
I have my Holset H2E ready to be shipped off to be looked at, cleaned up, and rebuilt if need be... just need someone to send it to who has worked with them before! lol.
I just ordered my Wisecos from Oliver at Slowboy. It went very well, and he is a pretty awesome guy, with no mis-communication, or trouble at all.
I was trying to get it done on Saturday but it was just a bad day. I ordered a set of 87mm, which is .020 over for the 4g64.
I have my Holset H2E ready to be shipped off to be looked at, cleaned up, and rebuilt if need be... just need someone to send it to who has worked with them before! lol.
so what will your overall compression ratio be? I plan on calling slowboy and talking to them about the pistons and rods for a 4g64/4g63 combo
Interex, which pistons did you get???
Are they compayible with 162mm rods, on 94 mm crank??
What is your set up in general: crank/stroke, rods, pistons??? LMK. Thanks,Andy.
Interex, which pistons did you get???
Are they compayible with 162mm rods, on 94 mm crank??
What is your set up in general: crank/stroke, rods, pistons??? LMK. Thanks,Andy.
Andy,
The original pistons I bought were CP... 2000+ 4g64 Pistons. They were 8.5:1, 100mm stroke, 87mm bore.
I sold them the other day and bought a set of 2G Wiseco 87mm, 9.1:1 for my 4g64 with 100mm stroke.
And no, I'm sure they're not compatible with 162mm rods, that's a whole lot of rod there for OEM pin distance.
Thanks, just looking to see if anyone makes pistons for 162mm rods/94mm crank/ 2.4 block.
If they did it would probably be a high compression piston.
With any given crank and block, the longest rod you can use depends on the piston's compression height. If you use a standard stroker style piston (which has 6mm shorter compression height than stock) the longest rod you can use with the 94mm crank is 159-160mm, depending on headgasket thickness and a couple of other variables.
To use a 162mm rod with a 94mm crank (and not seriously increase compression ratio) you'd have to get a custom piston made with 9mm shorter than stock compression height. This is theoretically doable from what I've heard, but it would move the pin up into the oil ring groove and severely weaken the piston's overall strength.
got some pics of my 4g64 motor! notice its already threaded for a knock sensor and it doesnt have the holes to be filled in on the block, like the SOHC. the stock rods look like they are the same as a 7-bolt 4G63, they have G6 stamped on them.
All 4g64 7 bolt rods are the same as 4g63 7 bolt rods. I think we discussed that previously.
The pistons are the same aside from the 4g63 being 85mm and the 4g64 being 86.5mm which is .060 oversize.
I've not proven it yet, but I'm also positive that the 4g64 and 4g63 share the same front cover, water pump, and etc.
All 4g64 7 bolt rods are the same as 4g63 7 bolt rods. I think we discussed that previously.
The pistons are the same aside from the 4g63 being 85mm and the 4g64 being 86.5mm which is .060 oversize.
I've not proven it yet, but I'm also positive that the 4g64 and 4g63 share the same front cover, water pump, and etc.
What about the oil filter housing, i know its differant, but would it be safe to reuse, it doesn't have the oil cooler on it, just a spot to add an external air oil cooler, i would much rather have the one without the coolant oil cooler on it.
UPS delivered my pistons that I ordered from SBR... Thanks Oliver
I also have come to believe my 4g64 block is from a 98 Galant (7G) which is the same as the 2G DSM Spyder... I'm not too sure, and really have no way to prove it but just from reading, and talking to some people they are positive the 4g64 block in the 8G galant is NOT the same as the older series. I'm still trying to prove it though.
The block, girdle and pistons are now at the machine shop, as well as a spare crank I am having polished up. Things are moving right along
I'm still stuck in a problem with figuring out this H2E Turbo. I just have no idea what I'm going to do because I'd like to have it dismantled, cleaned up, and if it needs a rebuild then that too. I'm no turbo guy, I know nothing about them but I would be very happy to have it taken care of by someone I can trust, and who wont rip me blind.
Its a 2.4L 4g64 out of a 1999 eclipse spyder gs so it has the split thrust washers.
eagle h-beams
eagle forged chromoly crank
Wiseco .020 over forged pistons
nice build, if you guys look closer that's assembly lube, its red. don't want that nice cross hatching to rust over. My question is what does the split washer thrust bearing look like?
Its actually type f automatic trans fluid. I used this because the wiseco tech recommended it for the assembly.
As for the split washers, im trying to look for some pics but ill tell you that the blocks with split thrust washers will only have reciever grooves on middle journal on the block. The blocks that use the thrust bearing/main bearing will have grooves on both the block and the main girdle.
The reason being that im keeping the head sohc is just because i built that head awhile ago with some nice parts and i didnt want to waste all that work. Rest assured, i am building a twin cam head. I just need more time.
Here you can see the top 3 pieces of the thrust bearing for the "split" thrust bearing. You have the center piece which goes in the journal, and then the 2 side pieces that go on the side of the top thrust bearing.
