i have a 1977 chevy k10, it had a 400 carb engine, and it needs a rebuild, but i want to swap the truck to the vortec 454 for more power and better economy than a carb engine. but i need some information on what i need and how to do it. i know i need the engine and ECM, and the two fuel pumps for the two tanks, and high pressure lines, but what else do i need to make the swap?

 

One BIG issue is wiring harness. Good luck with it.