Depending on the vehicle, either one of the cylinder heads, or, in the intake manifold, near the thermostat. The wire running to it, if original, from the firewall, will be green.
The 1994 Chevy 454 cubic inch big block engine temperature sensor is located on the front of the engine. The engine temperature sensor will be a few inches above the thermostat housing.
180.
180, to 200.
that must be some metro to have a big block
Anything over 210, should be of concern.
Right above the oil filter.
The 400 Chevy is a small block engine. The 400 BIG BLOCK Chevy does not exist! 402 big block Chevy does. it seems in the early 70s Chevy put 402s in their pick ups and they had 400 badges. this opened the can of worms known as the non-existant big block 400.
yes
Yes.
1,8,4,3,6,5,7,2 all small block and big block firing patterns are 1,8,4,3,6,5,7,2 for Chevy
Chevy to Chevy...yes.
180, degrees. The new vortec motors, after 2000, run at 210.