1968 spark plugs

G

green56

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Oct 31, 2007

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516

• Jul 2, 2015

• #1

what is the number of the spark plug for a 289 not hipo i have a set but don,t know if they fit BF42 or 43 Thanks Tom

 

R

robert campbell

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Apr 10, 2007

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4,321

• Jul 2, 2015

• #2

Tom,
BF-42 for almost all Ford motors. Most high performance Ford motors used a one step colder, BF-32.

Rob

 

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G

green56

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Oct 31, 2007

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516

• Jul 2, 2015

• #3

Spark Plugs

Thanks Rob good i found two sets in my box Thanks Tom

 

Mosesatm

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Jan 18, 2005

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• Jul 2, 2015

• #4

How does a 42 differ from a 45, other than being 3 less?

 

R

robert campbell

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• Jul 2, 2015

• #5

Same plug just a newer branding so to speak. BF-45 are the newer version of the old BF-42.

 

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G

green56

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• Jul 3, 2015

• #6

Rob checked the plugs again and they say BF 42C does it make any diff? Thanks Tom

 

D

dalorzo_f

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Jan 7, 2006

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• Jul 3, 2015

• #7

BF42C, C = copper core. BSF42C S= Suppressor, supposedly less radio frequency interference. Replacements for a BF42 in function and use.

As noted the 45 is a Autolite replacement for the Motorcraft 42... Autolite can't reuse the Motorcraft numbers, same plug, different OEM ...