2.8-700R4 to 350-TH350 swap
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
2.8-700R4 to 350-TH350 swap
Ok I have an 84 with a 2.8l v6 and 700r4, and I have a 350 with a th350 almost ready to do a swap. I have read the swap guide here talking about the motor mounts, brake lines (which are rusted out anyways), special crossmember, etc
I have the th350 crossmember from UMI.
My question is, is it worth it to put the th350 in? The 700r4 (that currently slips and leaks) wont require a crossmember change, or shifter linkage fab work, or custom driveshaft.
Should i spend my money on a stand alone lockup controller? I want to get in this car and drive. It isnt meant to be raced. much
I am knee deep in this project and i am getting lost as for what direction i am going in.
anyone?
I have the th350 crossmember from UMI.
My question is, is it worth it to put the th350 in? The 700r4 (that currently slips and leaks) wont require a crossmember change, or shifter linkage fab work, or custom driveshaft.
Should i spend my money on a stand alone lockup controller? I want to get in this car and drive. It isnt meant to be raced. much
I am knee deep in this project and i am getting lost as for what direction i am going in.
anyone?
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Car: 89' camaro RS TTOP
Engine: 92 5.0tpi Bosch III, headers, msd
Transmission: 700r4 built. trans go. 2,300 stall
Axle/Gears: 3:73 posi ls disc brake conversion
Re: 2.8-700R4 to 350-TH350 swap
V6 tranny wont work on v8. 60 degree block vs. 90 degree.
Last edited by musicfreako; 09-08-2011 at 12:05 AM.
#3
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Car: Base 91 'bird
Engine: 3.1 v6
Transmission: 4L60
Axle/Gears: 9-bolt 3.27 & PBR
Re: 2.8-700R4 to 350-TH350 swap
The v6/v8 use the same trans. You've got one listed. It depends on the engine output and bolt pattern if it bolts right up.
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Car: 87 Camaro
Engine: 305
Transmission: 700R4
Re: 2.8-700R4 to 350-TH350 swap
The V6's and V8 transmissions use different bellhousing patterns. V6 is a 60 degree housing while V8's use 90 degree bellhousing. Unless you have a 90 degree 700R4 you'll pretty much have to use the TH350.
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Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 2.8-700R4 to 350-TH350 swap
Also, TH350 doesn't have a lockup system that I know of. It's a 3speed tranny - depending on rear gears mileage will suck compared to the 700R4 with the overdrive and locking converter.
But as mentioned, you cannot use the V6 700R4 - different bellhousing pattern so it will not bolt up.
But as mentioned, you cannot use the V6 700R4 - different bellhousing pattern so it will not bolt up.
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Car: 87 Camaro
Engine: 305
Transmission: 700R4
Re: 2.8-700R4 to 350-TH350 swap
Finding a 700R4 or taking the time to do a T5 or T56 swap would be a better option imo. It will net you much better gas mileage in the end and with a T5/56 you would have alot more enjoyment. But it all depends on how much time and you have.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If the car isn't going to be raced, I assume that means it'll be driven on the street/highway. In that case, forget the TH350 and find a V8 or 4.3 V6 TH700R-4.
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
for the replies. The car has a 3.23 rear gear.
Can someone explain lockup to me? I know its a dumb question, but i see nothing explaining exactly what happens when the converter is locked up, what exactly is happening and do i even need it to happen?
BTW gas mileage isnt a concern, as this is my toy, not my daily driver.
Can someone explain lockup to me? I know its a dumb question, but i see nothing explaining exactly what happens when the converter is locked up, what exactly is happening and do i even need it to happen?
BTW gas mileage isnt a concern, as this is my toy, not my daily driver.
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
hmm it appears to be a clutch inside the converter that is engaged by the computer (which will be disconnected after the swap). So now i understand how it works. Now i just need more $$$$
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
OK now that i know how it works, and i see a few kits available for stand alone installs like i am doing. Do you all think these kits can be installed by myself or should a shop do it? My knowledge of transmissions is limited to filter changes.
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Car: 1986 Iroc-Z :)
Engine: 305 Tpi, cam, headers, super coil
Transmission: 700r-4 with shift kit
Axle/Gears: 3.23 posi
Re: 2.8-700R4 to 350-TH350 swap
Hey, im the kid you bought this from in riverside . Can you send me pics of what you have done to it? And ill send some of my IrocZ
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: 2.8-700R4 to 350-TH350 swap
speedway motors sells a trans adapter for the 2.8/3.1/3.4 engines.
i belive its 40$'s it allows u to bolt any 90* bellhousing pattern transmision to the 60*v6 i.e. th350 th400 2004r t5, t56 t10 etc
i belive its 40$'s it allows u to bolt any 90* bellhousing pattern transmision to the 60*v6 i.e. th350 th400 2004r t5, t56 t10 etc
#14
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
The next question is then, will a v6 computer not hooked up to the engine (carbureted car) be able to control TCC on either the original v6 or a new v8 700r4? What signals would the ECM need from the 350? Would i need a v8 ECM to control it?
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: 2.8-700R4 to 350-TH350 swap
if u swap to a v8 700r4 the ecm will still control the lockup ill see if i cant find u a link to the adapter plate, a few of us in the v6 section have used them
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: 2.8-700R4 to 350-TH350 swap
http://www.speedwaymotors.com/Chevy-...ates,3280.html
works for all transmissions not just the th350
works for all transmissions not just the th350
#17
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
I think in the interest of keeping it simple a V8 700r4 is the way to go. I know of a couple craigslisters who have rebuilt units for $600-$700 so i may go that way. Wonder if the v6/v8 cables are the same?
for all the help!
for all the help!
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If your carburetor is a non-computer type, you'll be using a non-computer distributor as well. I don't know of anyone who has set up a non-computer distributor to feed the ECM engine speed. The throttle position sensor is built into the computer carb, but you can hook up a stand-alone TPS if you like. The VSS doesn't have to be disturbed when going to a non-computer induction.
But...
A stand-alone TCC lock-up kit would be a lot easier to get to work.
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
Here is the engine so far and a video of it running before paint and chrome
http://www.youtube.com/watch?v=LxvFl0LY_ps
http://www.youtube.com/watch?v=LxvFl0LY_ps
#21
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Car: 92 Chevrolet Camaro RS
Engine: 3.1L V6
Transmission: T-5
Axle/Gears: 3.42
Re: 2.8-700R4 to 350-TH350 swap
I recently did the swap in an 82 Firebird that had the same engine but a th200c. You will need a kit for the torque arm. B&M sells the kit for $100 that will let you use your torque arm and 700r4 cross member. If you have a 9in tailshaft you can reuse your driveshaft. If you have a 6in you have to find a th200c driveshaft. Its straight forward after that.
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
Well, I think I have decided to keep the v6 700r4, and adapt that to my new 350. Would this work? Will that speedway motors plate work?
http://www.speedwaymotors.com/Chevy-...ates,3280.html
Is the v6 model strong enough for a 290/260 horse 350? Not lookin to tear asphalt up with it, just as a cruiser.
http://www.speedwaymotors.com/Chevy-...ates,3280.html
Is the v6 model strong enough for a 290/260 horse 350? Not lookin to tear asphalt up with it, just as a cruiser.
#23
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Car: 1984 Camaro Sport Coupe
Engine: 2.8l v6 soon to be 350
Transmission: auto
Re: 2.8-700R4 to 350-TH350 swap
Geez why is this so complicated?! lol The bell housing will not house the 350 flywheel. States that on their site under the reviews.
I am gonna have to sell the car or, wait until next year!
I am gonna have to sell the car or, wait until next year!
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Car: 1986 sports coupe, 1984 F41
Engine: 3.8L Turbo SFI, stock 305
Transmission: 700 R4, 700 R4
Axle/Gears: 3.42:1, 3.08:1
Re: 2.8-700R4 to 350-TH350 swap
Get a junk yard 700r4 from ANY v8 car/ truck/ van and swap over the camaro's tail stock and speedo gears. Really realy easy to do.
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