Spark Plugs: Autolite or Motorcraft

Cougar Community Classic Cougar Maintenance Restoration and Repair
1

I have a base 67. Any difference between the Autolite 45 or the Motocraft BSF42C plugs?

2

Both are good and work well. I would go with whatever is cheaper.

3

Can’t find the Motorcraft available anywhere, OK to go with the Autolite 45 then? DO you happen to know what the gap should be?

4

I’m always happier to use parts that say Autolite anyway since Motorcraft didn’t exist prior to 1972.

5

.035" with points or a Pertronix.

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