Long tube headers for 5.3L swap

[rocket_customz]

What long tube headers are you guys using for ls swaps? Truck or car applications?

[Clyde65]

Doug Thorley is the go to. They have 1-3/4" and 1-5/8"

[rocket_customz]

Do the 99+ truck headers fit or do I need to get a set for a camaro or gto?

[jweb]

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

[rocket_customz]

Originally Posted by jweb

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

[PGSigns]

Look in the LSX swap section there are lots of info in there.
http://67-72chevytrucks.com/vboard/f...play.php?f=206
Jimmy

[Clyde65]

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.

[racecougar]

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

[jweb]

Originally Posted by rocket_customz

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.

[racecougar]

Originally Posted by jweb

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.

[jweb]

Originally Posted by racecougar

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.