hello i have a 2002 seirra 1500 4x4 5.3l. i am curious how much power is stock form, i am considering doing a cam swap, headers cold air kit. but i am wondering what tuning has to be done with the hot cam. and with the hot cam kit can i use the 1.8 rockers. i have the lt4 hot cam in my 89 camaro and i like the power band and was concidering an upgrade on my truck. any information would help thank you.

 

im not too sure on this but i think the hot cam is quite difficult to tune

i wouldnt use the 1.8 rockers, just get a cam with the lift and duration you want IMO

id suggest a comp 212/218 hi-lift

im not even sure what the specs on the GM hot cam are

 

i wouldn't put a hotcam in a 5.3 either. There are much better choices out there for the same price.

 

the specs are (218/227 .525/.525 112 ) and includes 16 LS6 valve springs
hope this helps.i was leaning towards the hot cam because i work at a gm dealership and my cost on parts is good.

 

just wondering how you figure this cam is hard to tune?

 

ive just heard on tech that for some reason the HOT CAM from GM is hard to tune and i never got a reason why...

 

According to the GM Performance parts catalog, the duration is 219/228 with the .525 lift and 112 lsa.

For some sound clips of this cam, go to www.ls1sounds.com

 

I don't have any personal experience with it myself, but from what i understand the performance isn't that great out of it. It probably won't work too well with a stock converter either.

 

i see, alot say the trex is a hard one..but im pretty confindent thinking i tamed the Rex

 

The hotcam will pretty much suck in your truck. Just being straight with ya
There are alot better Cams out there that will make more hp and drive alot better.

Your truck right now is probly putting out 240rwhp in a 2nd gear pull from what I've seen.