L92 or LS3
 

Just picked up an $800 L92 this past weekend off an 07 Denali with 80k, planning on swapping it on my 01 rcsb Nbs. Was wanting to see if i can get any advice if I should just build the L92 or make it an LS3 since they share a few things... Honestly, I'm not on a budget so I just want to see what you guys think is the best way to go. Maybe also recommend any parts such as intake, headers, cam etc..Wanting to get over 600 horses.

they are both aluminum 6.2 liters... one has truck intake one has car intake...they are same thing

You're going to need to swap a bunch of parts just to make the newer engine work with your computer. So be prepared to spend extra money just to get that working.

arent the only things needed to be done is 58x to 24x, knock sensors, cam sensor and dod/afm delete (if it has it?) ?

its just a gen4 going in a gen3

Off the top of my head it's 58x to 24x so converter box or swap reluctor wheels. VVT delete with new camshaft, swap to 1x cam gear. Move knock sensors and wire them, I think they make a new harness you can buy to extend the wiring. New timing cover because the VVT delete. Remove the oil pressure relief valve in the oil pan.

Buy new injector harness clips if using the 2007 injectors or swap over some larger 2001 style injectors because the small 25lb/hr won't even support a 6.2. He'll need to figure out a fuel rail setup too because the 6.2 is returnless and the 2001 fuel rail will not bolt up to a GEN 4 truck intake or car intake.

Forgot to mention, I have the complete wiring harness and ECU. I'm not quite sure how the 58x to 24x works, so i'll have to look into it as well as VVT.
Thanks for the feedback though.

^^^ Knew this would come from the very beginning haha.

600 all motor you will need a huge donkey dick cam and stall, would be better off saving up for a turbo or blower....if you really picked it up for $800 then you got a steal!...your best bet is to clean the motor up and flip it for a profit (you should EASILY be able to get $2000+ for a clean 80k 6.2 long block), THEN pick yourself up a nice LQ4 or even an LQ9 and save yourself some headaches