what do the ls1 guys reccomend for an 03 silverado... im not looking for anything too drastic but something that will give a little more power and give a small lope/loap sp ck i want this before i get a tune here are my existing mods

5.3
k&n intake
dumped exhaust
3.73 gears
throttlebody spacer.. thats pretty much it...

also i wont be doing headers for a while

 

I've been wondering the same thing for some time now. I'm liking the TSP 224R with a 114 LSA. Looks like it'll have a little lopiness and still have decent low end torque. Hopefully someone else can chime in with good advice.

http://texas-speed.com/shop/item.asp...d=166&catid=44

 

216 220 529 532 114 or 220 220 563 563 114 or if you don't want to include a higher stall converter get the 212 218 581 581 115

 

When I had my truck it was a 5.3L with....
Volant CAI
Pacesetter LT's - 3"OR-Ypipe - 3" Magnaflow muffler
ASP Underdrive Pulley
TR 220/220 .551"/.551" 112LS Cam
Auburn Pro Posi, 3.73 gears
And was at 110% injector duty cycle on stock injectors.

 

go big or go home, get a t-rex

 

t-rex is a little much for a 5.3 dont cha think Chase? haha

i had a TSP 220/220 .581/.581
yank tt 3000
pacesetter lts ory
truetrac and 3.73's

great power all around IMO

plan on using the same cam in my 4.8 if i decide to fix it up

 

Ya, your probably right, the tr224 is a good cam for the 5.3

 

I had a comp 216/220 like V8 suggested in my 04 5.3. Was running 3.90's and a 2500 RPM Converter. 2500 RPM is the bare minimum I would run with that cam IMO. 2800 would have been perfect.