Alright fellas, I want some more power. I've got a 4.8 with the mods below (hooked to a 4L60E and G80 w/3.42s). I want to get a cam that will lope pretty good and pull hard with the Yank 3000 converter. If you think I'm overcamming and stalling, then tell me. I just want the sumufabitch to run damn strong. I'm putting a 6.0 in later, but I want to do a little tuning on the 4.8 first.

Thanks!

 

get a 212/218 high lift with 918 springs and let her dance with the stall. this cam will increase your bottom in tq and give a great improvement in the power band. You could also go a little bigger with the cam like 216/220 either get a 112 lsa or 114.

 

would that cam and stall be good on a 5.3 w? 3.73's?

sorry for the hijacking

 

what does the different LSA do? i wanted to get the 216/220 .525/.532 114LSA and a tt3000

 

lsa is lobe seperation, the less lobe seperation you have the more valve overlap you will have, the more valve overlap the less.

 

Depending on the ICL the lower LSA will shift the powerband down a bit. So you don't have to rev as high to make power. That's part of the reason the LS6 cam should be installed with some advance. It will help bring the effective powerband down to a usable range for the truck motors/intakes.

that 212/218 cam seems to be a real crowd pleaser around here so you almost can't go wrong unless you are looking for a max effort. Then you CAN go bigger on the 5.3L but do so at your own risk. I'm in the 320+rwhp range now on my setup and I dont even have a power pulley. But not everyone would like the tuning required to make my cam drive like it does. But god the lumpy idle is cool as hell. The truck actually rocks at a stoplight like an oldschool Camaro.

 

what would be a good size for a 5.3?

 

what is ICL?
and how hard do you think the tuning would be for allen to do?
do you think i should get a 112 or 114 lsa?
would the cam i want do that? (please say yes)

 

Go reread my post.

Ladiesman, I doubt it will be that lumpy. The 112 LSA really makes a big difference BUT I don't have a split dur like you do which tends to make things got lumpity lump. I'm sure one of the guys with MUCH more cam knowledge than me will chime in and help you out more. Allen can tune just about anything but it's gonna take you a few tries to get it right I bet. I know it took awhile for him to get BLK6.0HDs truck to idle right and he has a 224/232 cam in his 6.0L. My truck still idles and lopes better though

 

good size, how big the biggest I would go is 224/224 with 112 lsa. Or a 218/222 with the 112 lsa to move the power lower. Personally I would go with the 220/220 with 112 lsa. that's later though.