hardcoretrubedour13

hey All im ordering in all this stuff for my truck but im buying it all in increments just have ?s on some stuff the truck is an 2009 gmc sierra rcsb 4x4 with the 4.8l 4L60e tranny and 3.42 gearing. for upgrades i already have an airiad jr. kit and a flowmaster super 10 muffler 3 inch in 2 1/2 duel out and 3rd cat gutted cat back
here is the list i have come up with so far:
A custom tune no handhelds for this guy going to a dyno shop and getting it done
pacesetter lt ceramic coated headers
building my own custom y pipe/pipes to fit true duels no cats
2 hooker aerocahmber mufflers 2 1/2 in and out center
an x pipe or h pipe what is recommended?
a Comp Cams 212/218 LSx Cam "LOW LIFT" cam
the powerband is perfect for me and what i do with my truck and love the sound it has with the right exhaust
what length of hardened pushrods? and of course springs and retainers? lifters maybe and rockers maybe?
a stall but of what rpm and what brand is recommended?
a trans cool 40k tranny cooler
a corvette servo
a shift kit
a lower geared rear end if i have to like 3.73 or so posi traction unit or lsd rear -end what brand is recommended? and do i have to change the front end gearing as well if i do this?

sorry for the long post but i want to be sure i got all the right info before i tear into my truck and please post what else i could possibly do with my truck besides getting a 6.0l and dropping it in is NOT in the cards i want to do this with the 4.8l because i want to have a snappy torquey little truck when i done and people who have dones this before and have expieriance please post thank you

LaBlackIce

iTrader: (1)

i have a 08 sierra with a 4.8. I installed the air raid the spacer pace setters ceramic long tube headers catless 373 posi gears corvette servo and the most important a tune from spike performance in south texas to be exact this perfomance shop is located in pharr texas. Let me tell you that my truck is really fast comparing to stock is like day and night. People here in el paso get mad when i roll race them with their 5.3 and my little 4.8 beats them for about 2 trucks and still pulling.

hardcoretrubedour13

thats awesome man

62nalide

iTrader: (1)

My bud has one mean *** 4.8L but he ended up with a 3" x-pipe with 3" exhaust on magnaflows, But he has a custom grind cam and a ported t-body on top of what your planning on doing and made real good power just not that torqy

here is an old idle clip
Cheyenne RST 4.8 new setup - YouTube

and a lil run vs a 6.0L SS
Cheyenne 4.8L vs Modded SS - YouTube

LaBlackIce

iTrader: (1)

also i forgot im running that 40k transmission cooler works really good. It drop my temperature about 25-30 degrees.

hardcoretrubedour13

thats good thanx man

cam

iTrader: (9)

List sounds good. Leave the stock lifters and rockers you cant improve on them for your set up. Push rod length needs to be calculated after you get the cam installed. Either use a PR length checker or count how many turns the bolt takes after reaching zero lash at the cup and you can calcualte from there. Its been a while but iirc each full turn is worth 0.050" preload but search that out to be sure first.

Aerochambers win

Gus 82

iTrader: (2)

List looks good. Go 3200 on stall and 4.10-4.30 on the gears.