What's your end goal? Many would say its easier to just pull engine than to pull heads in chassis.
Just take some good pics and unbolt it all.
Leave throttle body attached the intake manifold an pull together after you remove hoses, sensors, gas pedal and cruise control cables.
You can try to take exhaust manifolds off on heads or leave them on a guess and unhook the two bolts at pipe and pull with heads.
The timing cover and timing chains have to come off so you have to drop ac comp (don't blow charge just unbolt from block and leave it laying on frame. Unbolt power steering pump and leave it there too.
Pull radiator but leave condenser alone. Remove alt before you takeoff intake. Oh, unhook battery first.
I can pull the whole engine a lot faster than I can pull heads and timing cover. Then one as stand it is a lot easier to work on.
Replace all exhaust manifold studs or use new bolts like I did on my V-10 in excursion.