First off im new to turbo's so be easy on me guys. Just wanting to see how much boost some guys are running on stock bottom end. I have a 5.3 myself with a cam and all the supporting mods. Was planning on running 10#s. with a goal of at least 450 hp. Would like 500 but not sure if I can push it that far.

 

A stock bottom end can hold that and quite a bit more. If 500 is your goal then you will be more than okay. Personally I am more afraid of detonation problems than the bottom end letting go. Check around the site you will find many people running a stock short block. This is not to say forged is not good insurance just not completely necessary. I am sure people on here can chime in with real numbers to give you a better idea. Good luck and enjoy!

 

Been running 8-10 lbs on mine for 2 years. I'm pretty easy on my stuff though..no problems

 

Are y'all running arp studs or bolts running 10#s or more?

 

13#s stock everything but cam,pr and valve springs.

 

Thats what I wanna hear!!! How much hp?

 

What year is your motor?

 

6.0 here cam and eBay studs 10-12 psi been driving it like its stolen. The past 5 months.(NO PROBLEMS YET)

 

daily drove mine for a while on 15 psi on pump 93 till it got rearended and now its torn a part for some improvements. I have arp studs and ls9 gaskets and would suggest them is you plan to go over 12-13 psi

 

bout 530 or so.