i have an 08 rcsb w/ a 5.3 (w/ the 243/z06 heads) yes the heads are identical to the ones on a z06 the only difference is it doesnt have the sodium filled valves

heres what it has now:
-k&n fipk
-borla catback
-nelson tune

here's whats ordered or already here:
-comp 222/226 .581-.588 112lsa cam
-comp 918 valvesprings
-chromoly pushrods
-ls2 timing chain
-yank ss 3200 stall
-pacesetter coated headers
-pacesetter ORY
-corvette servo
-sonnax superhold servo
-sonnax hp tranny kit
-flexlite 36000 gvw tranny cooler
-underdrive pulley package
-4.10 gears

what other essential things are needed?

 

wow sweet list of mods ya got there!!!!! seems ya may have it all covered

 

330-340hp.

 

I don't know about hp/tq #'s, but I'll gues high 12's in the quarter mile. Sounds fun and I'm officially jealous.

 

Just want to make sure you are clear on what Z06 heads 243 castings are.. They are the Gen 3 motor heads, not the 427ci LS7 Z06 heads. Sounds like a decent little combo.

 

doesnt your motor come stock with an ls2 timing chain? my 07 classic did. id check it out before installing it because you might waste som time getting the sprocket off the crank, which i find to be a PITA. nice combo by the way, you gonna get it dyno tuned?

 

no efans ?

 

They are factory on 05 and later 1/2 tons.

 

i'm guessin low 13's... 12's will be pretty hard to reach
yea i meant the ls6 version... i shoulda clarified
i may hold on it but i was told i had to get the different crank sprocket since mine has VVT which i assume means i have to get chain and all correct?... the tune will be mail order update from nelson until i can get down there and have him tune it live

 

so you guys think mid-low 300's?