Headers?
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Senior User
Joined: Mar 2002
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From: Crustucky (Crestview) Florida
Headers?
I'm going to be getting headers soon but am up in the air on which type to get. Does anyone know the differences between Shorty headers and long headers? Which would I gain most torque from? Thanks for any help.
-Ry
1985 F-150 4X4
Dana 44 TTB / 9 inch, 6inch Skyjacker lift, C-6 tranny, NP208 transfer case, 35inch BFGoods AT's, 4.56:1 F/R, Detroit locker rear, True-Trac front.
-Ry
1985 F-150 4X4
Dana 44 TTB / 9 inch, 6inch Skyjacker lift, C-6 tranny, NP208 transfer case, 35inch BFGoods AT's, 4.56:1 F/R, Detroit locker rear, True-Trac front.
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Senior User
Joined: Mar 2002
Posts: 154
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From: Crustucky (Crestview) Florida
Headers?
oh yeah, I was also wondering if it would be okay to run Headers with no cat and a dual exhaust system with 3 inch pipes?
-Ry
1985 F-150 4X4
Dana 44 TTB / 9 inch, 6inch Skyjacker lift, C-6 tranny, NP208 transfer case, 35inch BFGoods AT's, 4.56:1 F/R, Detroit locker rear, True-Trac front.
-Ry
1985 F-150 4X4
Dana 44 TTB / 9 inch, 6inch Skyjacker lift, C-6 tranny, NP208 transfer case, 35inch BFGoods AT's, 4.56:1 F/R, Detroit locker rear, True-Trac front.
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Posts: 56,992
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From: Virginia
Headers?
Shorty headers bolt up to the stock y-pipe. Long tube require a custom y-pipe. Does your truck have an O2 sensor in the exhaust? You need to accomodate this and it seems most shorties have the fitting already there. You might have to weld in a bung on the long tube.
You could run duals without cats but it would be illegal, although in some areas you can get away with it. A dual system with cats would still be illegal in most areas, but may pass in others. Shorties going to the y-pipe to a high flow cat and then into a cat-back system would be legal.
You could run duals without cats but it would be illegal, although in some areas you can get away with it. A dual system with cats would still be illegal in most areas, but may pass in others. Shorties going to the y-pipe to a high flow cat and then into a cat-back system would be legal.
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Senior User
Joined: Mar 2002
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From: Crustucky (Crestview) Florida
Headers?
The truck already has a single 3 inch exhaust without an O2 sensor. I bought it that way and haven't changed it since. I was going to try and keep the 3 inch exhaust and try to Y it off to duals after the muffler. Had no intentions on putting a cat back on it for performance reasons, but I might have to if I plan on having a shop do it for me. I'm just looking for the best gains and I don't know what type of header will suit me best. I'm kind of leaning toward long headers for torque but don't know too much about them. Thanks for the info.
-Ry
1985 F-150 302 4X4
Dana 44 TTB / 9 inch, 6inch Skyjacker lift, C-6 tranny, NP208 transfer case, 35inch BFGoods AT's, 4.56:1 F/R, Detroit locker rear, True-Trac front.
-Ry
1985 F-150 302 4X4
Dana 44 TTB / 9 inch, 6inch Skyjacker lift, C-6 tranny, NP208 transfer case, 35inch BFGoods AT's, 4.56:1 F/R, Detroit locker rear, True-Trac front.
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Joined: Jun 1999
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From: Durham
Headers?
The Tholrley tri-y headers are full length and built to add torque at the lower rpms. They are excellent headers, easy to work with, you can still remove your starter after you install the headers, and they have a thick flange and excellent gasket to prevent warpage and leaks. The modern Cats do not eat up much hp and have pretty good flow characteristics. I put two small DynoMax cats on mine to be able to maintain my smog inspections. 3" is way too big for duals unless you're running a high performance 460 or some other big block. You will probably actually deteriorate performance with a big 3" dual exhaust. I ran my Thorleys into a 2 1/4" pipe all the way back and used a dual in dual out Flowmaster muffler. Never did Y the pipes back together...but I do not have to worry about driving an 02 sensor.
Thread Starter
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Senior User
Joined: Mar 2002
Posts: 154
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From: Crustucky (Crestview) Florida
Headers?
Thanks for the info, I'll look them up
-Ry
1985 F-150 302 4X4
Dana 44 TTB / 9 inch
4.56:1 Front/True-Trac
4.56:1 Rear/Detroit Locker
C-6 Tranny, NP208 Transfer
6 inch Skyjacker Class II lift
35 X 12.50 BFGoods AT's
-Ry
1985 F-150 302 4X4
Dana 44 TTB / 9 inch
4.56:1 Front/True-Trac
4.56:1 Rear/Detroit Locker
C-6 Tranny, NP208 Transfer
6 inch Skyjacker Class II lift
35 X 12.50 BFGoods AT's
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