th400 and headers
#1
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Car: 85 camaro
Engine: 5.7
Transmission: th400
Axle/Gears: 4.10
th400 and headers
Just got my 355 running and its awesome.
But I know its dying from those stock manifolds.
So headers are going on no.matter what.
Problem is I have a th400. And it has those bigger flaps
On side. I would love long tubes but I'm.guessing.I would already have
Fitment issues with the stock k member then the trans after.
I have looked at shortys into the y pipe. But I just want that more
Power from the long tubes.
Has anyone ever installed long.tubes with a th400 and find there way around it?
But I know its dying from those stock manifolds.
So headers are going on no.matter what.
Problem is I have a th400. And it has those bigger flaps
On side. I would love long tubes but I'm.guessing.I would already have
Fitment issues with the stock k member then the trans after.
I have looked at shortys into the y pipe. But I just want that more
Power from the long tubes.
Has anyone ever installed long.tubes with a th400 and find there way around it?
#2
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: th400 and headers
Unless your over 500hp ish you wont really gain much from longtubes vs shorties like dyno dons.
If you just have to have longtubs, you can cut off the flaps on the trans, I have done many of them.
What are you doing with this car?
If you just have to have longtubs, you can cut off the flaps on the trans, I have done many of them.
What are you doing with this car?
#4
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Car: 85 camaro
Engine: 5.7
Transmission: th400
Axle/Gears: 4.10
Re: th400 and headers
Well the car is just going to be driven on.weekends
To cruise meets and some track time as well.
The cars not lowered. I want it to remain stock.height.
Rite now I'm not near 500hp. My goal is atleast get 400 Hp
At the wheel and il be happy
To cruise meets and some track time as well.
The cars not lowered. I want it to remain stock.height.
Rite now I'm not near 500hp. My goal is atleast get 400 Hp
At the wheel and il be happy
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Car: 87 bird
Engine: enough to break stuff
Transmission: manual th400
Axle/Gears: 4.10
Re: th400 and headers
everybody has exhaust issues with long tubes because you have to come below the frame. ive got a th400 and long tubes but i just left it open, but ive been wanting to put an exhaust on it. ive changed the conversion crossmember so it sits back further (welded new mounts). i think im going to cut the frame were the exhaust is going to go and weld in supports were i cut it out. i already have sub frame connectors.
#6
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Car: 85 camaro
Engine: 5.7
Transmission: th400
Axle/Gears: 4.10
Re: th400 and headers
Dang sounds like Im gona have to stick.to.shortys.
There still better then the Stock manifolds.
I.guess il save the long tubes and headache for my ls later on
There still better then the Stock manifolds.
I.guess il save the long tubes and headache for my ls later on
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#8
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Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: th400 and headers
you will have to cut the ears off the trans. Also I made another crossmember for the 400 that way you can run longtubes and duels without cutting the frame. The pipe will get close to the trans but it will work.
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