longtube headers

[newyork1002]

hello iam new here and looking for longtube headers for my 08 kon with 5.3. cant seem to find any my exhaust will be completly custom just need the headers so i can do true duels and x pipe all on the same side of the kon would older gm 5.3 longtube headers fit? thanx andrew any recomendations appreciated

[Modded]

No the older ones won't fit, most of the time headers on these 07-up trucks is a waste, but with your plans you may get some benefits.

[Zed 71]

Looks like you are doing right having an entire custom exhaust (x pipe w/ true duals). Hopefully you are at least installing an intake and have plans for a tune to make the most of it. For the tune, check out Black Bear (one of this site's vendors).

As for headers, look at JBA or Edelbrock. They make them for the NNBS Tahoes.

[newyork1002]

thanks guys i didnt think the older ones would fit but i thought ide ask. yes i will be doing a tune and intake. also i guess i should ask whats the difference between long tube a short as far as performance i dont think i will find long tube so ill have to go with shortys thanxs

[Zed 71]

Long tube headers help produce more torque at low/mid rpms due to exhuast scavaging. The duration of the exhaust pulse affects scavaging. The exhaust pulse is inversely proportional to engine RPM.

With long primaries, the exhaust pulses are more synchronized and work together at low RPM at the collector and assist in the evacuation of the other primaries, increasing efficiency. Now the engine can "exhale" more efficiently (more flow) and with a tune to optimize the air/fuel ration, more power is created.

[newyork1002]

so would the shortty headers help compared to the long because i cant get long tube headers? also iam completely redoing the exhaust from were the too pipes come together to the rear spliting the y pipe in to too sepret pipes making true duels if i do the shorttys will there be any need to change the cats and y pipe or leave the cat and y pipe alone and just put shorrtys on and make true duels thanx andrew

[Conor]

Money is better spent elsewhere in my opinion. I dont think you will get enough power back from the money you will spend. Save it for a Blackbear and an intake/exhaust. Once you have that save you $$$ for an SC

[Zed 71]

so would the shortty headers help compared to the long because i cant get long tube headers? also iam completely redoing the exhaust from were the too pipes come together to the rear spliting the y pipe in to too sepret pipes making true duels if i do the shorttys will there be any need to change the cats and y pipe or leave the cat and y pipe alone and just put shorrtys on and make true duels thanx andrew

Wow that was hard to read.

The first post sound like you knew what you were doing, but this post is just all over the place. Based on the bolded statement above, clearly you are new at this and need more help beyond just a forum. If you really want to spend the $$$, just go to an exhaust shop and discuss your project with them.

Good luck.

[GMz71]

Check out stainless steel works...i know they sell longtubes to true duels.
http://www.stainlessworks.net/cart/index.php?cPath=382_523_500_524

[newyork1002]

sorry about that my daughter was harressing me and i was trying to type fast lol. ive done a complete custom exhaust on my 03 maxima and 99 f150, but i was able to buy long tube headers no problem for them. so my main question was whats the difference between long and short power wise. ide still use the cats for emissions i would just move them back and move the o2 sensors. the f150 and maxima were easier cause they had a main cat and thats all i used i didnt use the pre cats. but on our trucks we only have two so if i bought shorttys i would use the cats and y pipe and then split it were the 2 pipes meet. but now that i found long tubes iam gunna go with them and just use the cats that are already on the truck i plan on puting a sc so i want all the air flow i can get right now. i am just gunna put an intake and custum exhaust and tune for now. my wife wants me to lift it 4 inches and put 35s under it so the more power the better lol thanxs for ure help guys.andrew

[Zed 71]

^ Just my 2 cents.

If you are going to put on a SC and you really want the most out of it, then I would just wait. Although the exhuast setup you want to put on will be better than stock, the optimal setup (mainly diameter) for NA is different than SC.

[undertaker]

um........they do make longtubes for the new trucks guys.

http://www.americanracingheaders.com/

american racing headers makes them (and for teh initial poster, they're in amityville, ny) Having owned 3 heavily modified vettes (550-800 rwhp) in teh past 6 years, I've tried most of the options for vettes and these are without question the best. I've seen the headers installed on an 07 denali locally, and as to be expected they're top notch stuff.

talk to nick but with a 5.3 and no boost I'd stick with 1 3/4 personally, more cubes and boost I'd go bigger. Probably also going to want a catted system, no cats gets a little old and winds up a little loud as well.

Don't even waste your money on shorty headers from JBA or Edelbrock, I've had to rip those off of trucks already for cracks and rusting out over time.

If you wind up picking up a set and need them installed let me know I'm in queens and can probably get them on for you.

as for a supercharger, my truck was a R&D pig for a supercharger company in jersey (and was going to american racing to get used for mockups until one of the owners bought an 07 tahoe) its on a buddys avalanche with a 408 right now but if you're local you might want to check it out.

[Zed 71]

If people would just read the thread, long tube header manufacturers were already recommended...

[mlwald79]

american racing or kooks

/thread