chevy/gmcFebruary 7, 2014what all do i need to do to swap a 350 vortec from a 1998 gmc in to a 1995 chevy? Keywords:engine swap 1 thought on “chevy/gmc” Freeautomechanic February 7, 2014 at 12:40 pm If your 1995 GMC already has a V8 engine in it and all you are swapping over is the long block. then that is all you need to do. All components will bolt up. However if you are wanting to use the intake and sensors, etc. You are in for a lot of work. You will need to remove the entire wiring harness, fuel tank with fuel pump and all sensors and wiring. The entire exhaust with converters as well. Comments are closed.