5.3 Fast intake manifold thoughts?
#1
5.3 Fast intake manifold thoughts?
My truck is Fbo, RKV3 cam, 3,600 stall, 4.56 gears, ported and polished heads, and a built transmission with red clutches etc. I was thinking a fast intake should really wake up the 5.3 with all of these mods, but I'd like some opinions and maybe some suggestions on what could be better? Thank you.
#6
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Not sure on that. Here is a write up on the NNBS swap.
"how-to" 03-07c NBS TBSS/NNBS intake swap | Chevy Truck Forum | GMC Truck Forum - GmFullsize.com
"how-to" 03-07c NBS TBSS/NNBS intake swap | Chevy Truck Forum | GMC Truck Forum - GmFullsize.com
#7
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Join Date: Sep 2013
Location: Lutz,FL (its called 'Lootz")
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Yes the tbss and NNBS intakes are the same. The fast lsxrt added 20 hp to the wheels on top end of a bone stock 5.3. Yours could be 25-30 possibly. Your cam and heads will like the fast. It just costs a grand. Here's the post
https://www.performancetrucks.net/fo...s-5-3l-464010/
https://www.performancetrucks.net/fo...s-5-3l-464010/
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#10
My truck is Fbo, RKV3 cam, 3,600 stall, 4.56 gears, ported and polished heads, and a built transmission with red clutches etc. I was thinking a fast intake should really wake up the 5.3 with all of these mods, but I'd like some opinions and maybe some suggestions on what could be better? Thank you.