Hey guys, I'm sure many of you have answered this question a million times. My 03 gmc sierra 1500 has a 5.3 and it has been abused and unmaintained for a long time. I'm losing coolant and I have a tick in the motor. I want to give it a little more power as I use it heavily on the farm and it gets pulled a lot.

Thanks

 

Welcome to the site.

Find a 6.0 to drop in it and either use the 6.0 PCM or have your stock one flashed with 6.0 tune.

Or pull the 5.3 have it dipped and cleaned, put new rings and bearings in it and put it back together. Your call.

 

thanks, I'll start looking for my 6.0 right away. I will be on here a lot more when i start my build. Any suggestions on performance mods are greatly appreciated

 

Does anyone know of any good salvage sights besides going on ebay?

 

First what state do you live in. Second you can make a thread in the regional section and somebody in your area might get you looking in the right spot.

 

small cam 216/220 era is a good low end cam for a 6.0 along with a custom tune. Recommend one of our sponsors for that.

 

welcome to the site. about a tune, give wheatley a call ive had nothing but good customer service with charlie ive must of changed my mind 100 time but the man is dedicated to his work and wont let you down. i just cant wait for when charlie can tune a dodge cant wait to see what he can do with my new toy. GO WHEATLEY OR GO HOME

 

Still dealing on a motor, but bought a 6.0 pcm on ebay for $36.00. Did I get screwed?

 

What year is the PCM from?

 

It's from an 03