Hi guys am new to this site and i got some questions for everyone I have a 2004 gmc sierra short box reg cab 4x4 with the 5.3 vortec i have a intake and flomaster exhaust the goals for my truck in to have in of arond the 400+ horse power and 450+ torque with out any type of forced induction any suggestions and on mods for my truck would be nice thanks

 

full bolt ons,cam, and spray.

 

https://www.performancetrucks.net/fo...d.php?t=420190
https://www.performancetrucks.net/fo...d.php?t=420395welcome!!dont forget to use the search

 

Welcome to PT.net
We talk of rear wheel hp and tq here and it is pretty unrealistic to expect numbers like that from a 5.3L NA setup without nitrous.

Full bolt-ons, head work, cam and exhaust might get you mid 300.

 

Thanks for the advise so far. i was looking at cams and springs and i was wondering on wat would work best for my and what type of head work should i do and what type of bolt ons should i get. The things i was looking at was a bbk 80 mm throttle body long tube headers electric fan kit some msd ingintion parts and nos on the road to come any other suggestions would be great thanks