Forum: Performance Modifications

What is the stock specs for the injectors for my 2000 5.3 in a Z71 1500? and is it possible to give it a little more hp by increasing the fuel flow...

Has anyone else improved their MPG and Power by heating their fuel?? I have seen about a 20% improvement in MPG's. Gasoline vaporizes at 140...

For a turbocharged 5.3 everyday street truck with Gen4 rods---If you had either the 4.8 or 5.3 piston sitting on the work bench---Which ones would...

Good all! I have an opportunity to purchase a used LS6 cam kit that I want to use in a turbo 5.3 setup, BUT I don't know the guy personally and...

Is the LSA cam a good choice for a 600whp turbo 5.3L motor? I found this guy that has a used 09 Z07 factory cam set and this new LSA cam set for...

I have a 01 shortbed and want to drop it so question is spindles or coil springs ?what is my best options alignment and tire wear .Im not looking to...

I have been looking for a street truck forum since I got my new toy. I just bought a 2002 rcsb with a 5.3,3:73 gears and a heavy duty locking rear....

I have a set of hooker long tube headers from a 4 gen camaro does anybody know if they will work on my 01 shortbed 2wd reg cab truck thanks in advance

Hi all, I'm new here. First post actually so if this is in the wrong place I apologize. I have a 95 c/k1500 Cheyenne single cab swb. I've been...

Well im building a k2500 crew cab with a lq4 4l80e. was looking at the comp high lift cam 54-424-11 for my build but my buddy told me he has a ECS...

I have a l59 5.3 in a my 04 tahoe. Looking to upgrade the motor some but I'm stuck on what my best option is. I would like to try and us as many LS...

I've been working on bolt in coil-overs for many different applications. This one is for a 99-07 with stock upper and lower control arms. This...

well let me give you guys a little back story, my little sister dated a guy all through high school and he had a 2002 ext cab Silverado with a 4.3....

I'm wanting to build a decent 5.3. I've got the whole top end from a 2000 z28 I.e. heads intake fuel rail and injectors that I've thought about...

I bought a used 2003 Denali 6.0L LQ4 from a dismantler. I purchased a new cam from Lingenfelter. I asked them which cam would work well with a...

Hey guys, just picked up a 2010 Sierra with the all aluminum flex fuel 5.3. I'm looking at doing the DOD delete and a cam with supporting mods. My...

I keep hearing rumors that the spindle from a NBS (6-lug) can be swapped into an OBS to facilitate bigger brakes on an OBS. Cant seem to run them to...

Hey everyone. I wasn't sure if this should go in the performance or conversion swap section so if this isn't where it belongs feel free to move it. ...

Well I made it to the track last fall with my 6.0 obs rcsb truck ran good went 12.30 at 110 current set up is a stock lq4 with shaved .030 243 heads...

I have a 2013 Sierra with a 4.8L. I have long tube headers ypipe back exhaust as well cold are intake and a tune right now but I want more power I...