New to the site but have been searching for some information for a while now.

Just bought a 2013 RCSB with the 4.3 V6 and 4L60E. Truck only has 6,000 original miles but i cant deal with the V6. Found a 2017 L96 from an express van and trying to decide what transmission should I do. Really want the light weight and size of the 4L60E, can i upgrade it enough to put to the back of the L96 with a cam and bolt ons?

Everything i'm reading is for older trucks so any help on exactly what i will need would be very appreciative.

Thanks