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Clark Rodgers · 01-21-2002, 11:10 AM

I would use a Motorcraft BSF42C or BSF32C, I am not sure what the Autolite number is but it won't make a difference if you have a 289 or 302 they are the same.
In the Motorcraft numbers the lower number is a colder running plug, I ran the 42 before my engine rebuild to help keep the plugs cleaner but with a fresh engine and Pertronix I will be starting with the 32.

01-21-2002, 11:10 AM	#2
Clark Rodgers Registered Member Join Date: May 1999 Location: Rowlett,Texas Posts: 306	I would use a Motorcraft BSF42C or BSF32C, I am not sure what the Autolite number is but it won't make a difference if you have a 289 or 302 they are the same. In the Motorcraft numbers the lower number is a colder running plug, I ran the 42 before my engine rebuild to help keep the plugs cleaner but with a fresh engine and Pertronix I will be starting with the 32. __________________ 69 393W Sportsroof deluxe