I have decided to get a new motor to replace my beat up 4.8l.. I got a 5.3l from an 06 silverado motor only had 14k on it.. and just wondering what the max boost it can handle with just the mods i have and it bein a stock motor with a cam.. Just curious

 

25 by accident on a 4.8

 

had mine @ 14lbs ON ACCIDENT today while tuning with Allen from Nelson Performance...boy that was FUN!

 

Rick @ Synergy Motorsports has run 17lbs on a stock block 5.3l for a dyno run and runs 14 lbs all day long on the street (over 5k miles). Obviuosly, his tune is spot on and is running a ton of Meth.

https://www.performancetrucks.net/fo...highlight=rick

His new kit hits 18 lbs.

https://www.performancetrucks.net/fo...d.php?t=420453

Rick

Rick

 

That is awesome!!! Turbos Rule!!! Ima be havin NicD tune my truck and hopefully get some pretty nice numbers outta it

 

Most other setups, STS trick etc. You can push 10 comfortably. But I would always get stronger springs and rods for added insurance.

 

Got em already... Well wanna push it but dont wanna be out of an engine before I get to have any fun..

 

I run around 12 psi and will be adding a small shot.

 

Depends on how long you want the motor to last. I have mine set at 10psi with a max of 14 degrees of timing. I also run a 32oz can of Torco per fill up. Intention is to have the motor last the life of the truck. However I am going to build an LS6. My truck is my daily driver and I do not have a backup... so my expectation is it will continue to be at or near factory reliability until I am ready to swap the motor. IMO, more or less boost is inversly proportional to factory motor life. Some get away with higher boost levels but everybody drives their truck differently... not to mention most have their own tuner which also adds to the mix.

Bill

 

Isee.. Mine is not my dd.. But dont wanna blow it in the first year...