more power for a 5.3

**eric69cam** · 11-13-2006, 11:14 AM

i need more power for my 5.3 silverado.

it's a 2000. i already have the volant intake, and flowmaster exhaust. i don't want to waste money on a MAF or TB spacer. what is something that will be useful and noticeable on a budget.

also - my truck is equipped with the secondary air pump to the left of the motor. can i remove this if so how. and if i do is there any benefit other than more appeal when i look under the hood and don't have to see the bundle of crap over there.

**Toes** · 11-13-2006, 01:08 PM

Electric fan...LS6 camshaft

**mrr23** · 11-13-2006, 06:36 PM

there's alot you can do. how far do you want to go into the motor?

**eric69cam** · 11-13-2006, 09:26 PM

well... for now no further inside the motor than a cam and maybe rockers... bolt -ons are open game. i really would like some info on interchangeable parts from the LS1's and 6's. i plan on taking a cam from the LS6 for as i've been told that with the mods i have done now it'll gain 50 rwhp. minus the fact that i still need the pcm tuned... plus i really want to get my hands on some electric fans. i'm also up to ideas as i'm sure there are plenty of things i'm not thinking of.

-- anyone know how the "corvette" servo in my 4L60E will benefit my truck?

**eric69cam** · 11-13-2006, 09:29 PM

i looked at nelson performance for the pcm... it looks like not too bad a deal for the whole pcm thank you for the reference

**SeVeReDiStOrTiOn** · 11-13-2006, 10:26 PM

You'll see a good gain but I doubt you'll see 50rwhp gain with a ls6 cam....since you're going to do a cam swap might as well make it count and get a custom cam.
Here's the specs on the ls6 cam...

2001 LS6 cam

207/217 int/exh @ 0.05" duration
0.525" / 0.525" int/exh lift
116 LSA

2002+ LS6 cam

204/218 int/exh @ 0.05" duration
0.551" / 0.547" int/exh lift
117 LSA

Also you'll see better gains if you ditch the chambered flowmaster and get a straight-through muffler like magnaflow. Like the other said, a tune will really help also.