I found a L92 out of a wrecked Escalade for a reasonable price, just what it would take to get it into a 04 swb Silverado, so im not bashing my head against a wall

 

First off, you will need a control box or a crank swap for the different reluctor (24x on your stock engine vs 58x on the GenIV engines)

 

Thanks, I did a bit more research, but I can find info on 2 things. Will a ls2 timing cover and gear set will work cause I don't want to keep the VVT, and also will the Kooks headers I have still work the 6.2 they are for the 5.3 with 1 7/8 primaries