Block heater plug, where?

[HighMileage]

Is there even a block heater plug on the 5.0 block?

 

[89MustangGX]

I'm sure it was an option in Canada -- but not a standard thing. And I'm not sure how the heater would work -- whether it would be a replacement dipstick or an actual heating element in the pan.

 

[Mustang5L5]

My Mustang has the optional Block Heater. It's a Massachusetts car.

Plug is located int he LX grill off to the side. No real special holster or anything, it's just hanging out there.

The wire runs down the passenger side fender and under the passenger header

One of the freeze plugs in the block is removed and swapped with the block heater plug. It's just a thicker freeze plug with the attachment to plug the wire for the heater in. WHen you plug it in, it gets pretty warm and does a good job of keeping the coolant warm at night.

I've used my block heater quite a few times this past winter when we had 2 weeks straight of dipping down near -20 at night and highs of 3-5 degrees.

 

[89MustangGX]

So the factory block heater heats coolant instead of oil? I thought they all did oil. Learned something new. Interesting...

 

[HighMileage]

The wire runs down the passenger side fender and under the passenger header

One of the freeze plugs in the block is removed and swapped with the block heater plug.

Under the passenger header ... Great and Thanks!

Now, to take a look and see if I could put one in myself.
If it's buried, it may be tougher than any spark plug.