LS2 TBSS intake on 5.3

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06-22-2007, 10:49 AM

#11

nighthawk08

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Quote:

Originally Posted by L33Z71

Makes me wonder what the difference is between the LS2 Intakes and the new Gen IV truck 4.8/5.3/6.0's. I haven't confirmed what size the stock TB is on my 07 4.8 yet and would be nowhere close to needing the conversion at this point, but might be useful knowledge for future reference.

i'm pretty sure they are all the same intake/tb. 4.8-6.0 GEN IV truck engines

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06-22-2007, 11:32 AM

#12

silver-mod-o

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Quote:

Originally Posted by thunder550

You won't have any problems with clearance running the LS2 truck manifold. A couple things to watch out for though....you need a 4 bolt 90mm throttle body and you'll have to fab up your own throttle cable bracket since all of the LS2 trucks are ETC. You will also need to custom-make some fuel rails. I cut the tabs off my stock truck rails and made my own brackets from some thin strips of aluminum. The crossover tube will only clear if you use the taller LS1 style injectors. The MAP sensor wires will also have to be lengthened.

Thanks Bro, I saw your write up earlier on it... Its good to know I can do the swap and keep my truck accessories... I might just post up a WTB ad on LS1Tech and see if I can get my hands on a cable 90mm TB.... looks like this swap may turn out to be pretty simple. The map wires dont sound like a big deal. What about aftermarket fuel rails and a X-over hose instead of pipe, like some of the aearmotive rails and braided crossover fuel hose??? I'm sure that would work as well... Thanks for the info bro... Looking forward to making this happen, I'll post up the results for sure.

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06-22-2007, 01:28 PM

#13

ZZebes

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So if i understand this correctly i can buy a TBSS intake Manifold and have a 90mm TB and not have to alter my accesory drive at all. plus keep the long runner design. **** who has a part number

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06-23-2007, 09:09 PM

#14

silver-mod-o

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I think there's gonna be some good gains to be had from the 90mm opening in itself... plus I'm sure it flows better than the stock GEN III truck intake... better torque down low and better breathing up top as well.... its a win/win

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