3400 Guys - What Rad and Hoses? - Third Generation Forum

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3400 Guys - What Rad and Hoses?
Wednesday, May 28, 2008 8:58 PM
Heya guys, I'm supposed to be sleeping, and I snuck out of bed with the laptop and told the gf I was getting a drink lol... an hour on the org later and I'm thinking....

What rad and hoses did you guys run for your 3400 swaps? I'm reaaaaaaaaaaaaaaaaally thinking I'm going to start my swap at the end of next month, so I'm trying to get all my ducks in a row. So far, I need a motor (lol), I need to fab up some mounts, a @!#$ ton of wiring which I figure won't be too bad with wiring diagrams, and this is the last hurdle I'm trying to figure out in my brain. I figure I'll try a computer out of a 3.1L Impala to get the fuel gauge to work since I have a 5spd..... and tune out all the transmission stuff...

What else am I missing? Please point it out! I'm doing this on a daily driver, and want to get EVERYTHING, and a bunch of the wiring done in advance--I figure I'm going to get an extra wiring harness so I can do all my wiring in advance, and just pop it in, does this sound plausible?

Thanks so much guys! You're all always very helpful!


There will always be someone faster than you, but thousands slower and dumber than you.

Re: 3400 Guys - What Rad and Hoses?
Wednesday, May 28, 2008 9:23 PM
2.2 non-eco (stock or AM), 97 Grand Am 3.1 upper and 97 J 2.2 lower. The sticky refers to using a mid 90's n-bod lower, but after I got the mount bracket from quiklilcav, it allowed the J lower to fit perfect









Re: 3400 Guys - What Rad and Hoses?
Wednesday, May 28, 2008 9:50 PM
stock J rad works fine, use the grand am upper and lower, If you are using the cav coolant tank you have to take the T out of the cav lower hose and put it in the grand am lower hose, hack saw the plastic rings on the t and replace them with reg hose clamps. there are guys using the cav single fan and the grand am dual fans, either way it works fine.

" a computer out of a 3.1L Impala to " you mean 3400 right?

wiring is the worst part of the swap, Im not sure that having 2 harnesses is going to help much. I would rather have it put in the car so I can be 100% sure that the wire that Im attaching is going where the diagram says, diagrams arent fool proof.
At times I have noticed that wire colors change and the diagrams dont show it. Im not saying that you cant do your wiring that way, Im just saying that it may make it even harder to figure out.


01 cav w/01 3400 gam gt 4t45e

Re: 3400 Guys - What Rad and Hoses?
Wednesday, May 28, 2008 10:03 PM
sorry, those were 01 grand am 3400 rad hoses that I used. I tried the stock J hose and I couldnt get the right bend at the 3.4 waterpump, I kept cutting it to get a nicer bend, all I ended up with is a shorter hose. maybe its cause im running A/C?


01 cav w/01 3400 gam gt 4t45e

Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 2:34 AM
I'm using the stock J-body lower and the 99 GA 3400 upper.





Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 4:05 AM
Jo Mx... wrote:" a computer out of a 3.1L Impala to " you mean 3400 right?


Nah, I mean at first I will run it with the GA flash or computer, just for the sake of making it run, but I remember reading one of the guys thought when he used a 3.1L flash out of an impala, or something similar, the fuel gauge worked, but his transmission went wonky, which he figured might be from different pin outs on the ECU. So I figure if I scam the tables and all the info for a 3.4L tune, and use a 3.1L computer so my fuel gauge works in my cluster, and use the 3.4L stock tables as a base point for tuning, everything should work half decent.

The only other thing I'm wondering now is these motors all came with flex plates, so for flywheels are you guys just using the OHV flywheels? And now I'm trying to figure out what clutch to do! I really don't want to half ass any of it, because when I'm done I'd like it to be more or less trouble free (as trouble free as a swap like this can be anyways).


There will always be someone faster than you, but thousands slower and dumber than you.
Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 5:59 AM
that was me that posted the info on the fuel gauge. the reason the trans went "wonky" was because it was a 4t65e and I had a 4t45e which had different gear ratio's. not a wiring issue at all. and it was an impala with a 3400. there was some confusion on whether it was a 3100 or 3400 at one point because of a memory slip. Go with the 3400 Impala ecm and harness, find out if there is any year that you cant use in your auto trans delete, and obviously choose the year that works best for you. I think You can go 00 to 05 with no problems, whatch you dont go too new and end up with a fly by wire throttle, I had an equinox in last week at work , I think it was an 06 , no throttle cable.....
as for the flywheel stuff, maybe look in the sticky, I did an auto swap and dont feel comfortable giving any info on that.. Often if you ask a common swap question and its in the sticky , no one will respond. lots of the questions get tiresome to keep answering for some guys. Just be sure to look around and search first.



01 cav w/01 3400 gam gt 4t45e

Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 8:46 AM
I am using 94-98 N-body upper and lower hoses on mine. There are two different versions of the lower. One has the T in it for the overflow tank, the other doesn't. The Jbody cars have this same option in them, I believe depending on year. If you ask at the parts counter, or hit up a junk yard, and get the one from the N-body that has the same option as your car, it should fit perfectly. I have the one with the T, and I didn't have to modify it at all. The N-body one fit perfect to the J-body rad.

For the flywheel, the 2.2OHV flywheel from the J-body works perfect. Just to be safe, use the one made for the tranny you're using.






Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 5:04 PM
isn't the general word : Stay Away from the 3400 in ALL equinox / torrent ...whole different animal / version of the 3400 ....?

just thought i'd add that since the equinox was brought up...



Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 8:25 PM
I would recommend a performance clutch. I used a stock 2.2, and at the strip, mine slipped until about 50mph




Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 8:28 PM
Nick Oliver wrote:isn't the general word : Stay Away from the 3400 in ALL equinox / torrent ...whole different animal / version of the 3400 ....?

just thought i'd add that since the equinox was brought up...


yeah that is what I hear,
the reason I brought it up was just because of the fly by wire TB. and it was an 05, I checked today.

It looks like the same long block in the equinox as the grand am it just has a different intake on it. throttle body is on the passenger side and the upper intake runners are longer , making it sit higher. It probably wont clear a J hood.
I dont think it has the ps pump in the same location as the gam.
I had a malibu maxx in last week with the 3500 and also the fly by wire, and it had on power steering pump! It looked quite strange with a whole where the ps pump sat. steered fine while not mooving , it had me scraching my head.


01 cav w/01 3400 gam gt 4t45e


Re: 3400 Guys - What Rad and Hoses?
Thursday, May 29, 2008 9:23 PM
To be honest LOL I am still using the stock 2.2L hoses haha they fit right up, im still using the stock heater core hoses too! I probablly should replace those.........


3400 SWAP DONE. 187WHP 212TQ (14.2 @100MPH NA) 240WHP 310TQ (N2O)

Re: 3400 Guys - What Rad and Hoses?
Friday, May 30, 2008 4:24 AM
Quote:

It looks like the same long block in the equinox as the grand am it just has a different intake on it. throttle body is on the passenger side and the upper intake runners are longer , making it sit higher. It probably wont clear a J hood.


I know with the 3400's intake you can actuall turn it around and face the TB the other way. So it might be possible to just flip it around to where it needs be. If it wasn't for having this 3500 top end here, i'd be mildly interested in the longer intake runners.





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