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Old 02-05-2017, 04:33 PM   #1
rocket_customz
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Long tube headers for 5.3L swap

What long tube headers are you guys using for ls swaps? Truck or car applications?
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Old 02-05-2017, 04:43 PM   #2
Clyde65
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Re: Long tube headers for 5.3L swap

Doug Thorley is the go to. They have 1-3/4" and 1-5/8"
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Old 02-05-2017, 06:49 PM   #3
rocket_customz
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Re: Long tube headers for 5.3L swap

Do the 99+ truck headers fit or do I need to get a set for a camaro or gto?
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1966 Chevrolet
5.3L LM7, cammed, ported and polished
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Throbros front dropmember,Custom 2 link rear with watts link
Ridetech control arms, Accuair air management
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Old 02-05-2017, 07:28 PM   #4
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Re: Long tube headers for 5.3L swap

I plan on using the Speed Engineering headers.

Here's some more info on them
http://67-72chevytrucks.com/vboard/s...d.php?t=711185
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Old 02-05-2017, 07:35 PM   #5
rocket_customz
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Re: Long tube headers for 5.3L swap

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Originally Posted by jweb View Post
I plan on using the Speed Engineering headers.

Here's some more info on them
http://67-72chevytrucks.com/vboard/s...d.php?t=711185
Thanks for the info. Those look like the way to go
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1966 Chevrolet
5.3L LM7, cammed, ported and polished
4l60E, manual valve body
Throbros front dropmember,Custom 2 link rear with watts link
Ridetech control arms, Accuair air management
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Old 02-05-2017, 11:09 PM   #6
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Re: Long tube headers for 5.3L swap

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Originally Posted by rocket_customz View Post
Thanks for the info. Those look like the way to go
The Speed Engineering website does say they require slider engine mounts to clear the front crossmember. Not sure if that's what you are using or how true it is.
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Old 02-06-2017, 08:58 PM   #7
racecougar
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Re: Long tube headers for 5.3L swap

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Originally Posted by jweb View Post
The Speed Engineering website does say they require slider engine mounts to clear the front crossmember. Not sure if that's what you are using or how true it is.
We used the stock '65 230ci perches, stock replacement mounts, and Speed Engineering's motor mount plates...no clearance issues.
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Old 02-07-2017, 12:02 AM   #8
jweb
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Re: Long tube headers for 5.3L swap

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Originally Posted by racecougar View Post
We used the stock '65 230ci perches, stock replacement mounts, and Speed Engineering's motor mount plates...no clearance issues.
That's good to know, those are way cheaper than the Dirty Dingo sliders.
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Old 02-05-2017, 08:51 PM   #9
PGSigns
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Re: Long tube headers for 5.3L swap

Look in the LSX swap section there are lots of info in there.
http://67-72chevytrucks.com/vboard/f...play.php?f=206
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Old 02-05-2017, 09:44 PM   #10
Clyde65
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Re: Long tube headers for 5.3L swap

Stock truck header will need frame surgery, the TBSS manifolds work very well, they are shortied tho. Hooker makes an aftermarket version of the TBSS.

Shorties are fine for stock or "tuned" applications, if cam swap and added power, you need long tube.
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Old 02-05-2017, 10:40 PM   #11
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Re: Long tube headers for 5.3L swap

We went with Speed Engineering 1-7/8" headers.




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