Posted By: hemi70se
Mopar spark plugs 3420761 74P what do they fit? - 10/31/11 03:31 AM
I have an NOS box of 10 MOpar brand spark plugs #3420761 74P Anybody know what they fit?
Posted By: RapidRobert
Re: Mopar spark plugs 3420761 74P what do they fit? - 10/31/11 05:24 AM
if nobody can run that # are they short reach (BB) plugs or long reach SB ones? Here's a BTT
Posted By: hemi70se
Re: Mopar spark plugs 3420761 74P what do they fit? - 10/31/11 05:42 PM
They are short reach with a tapered seat.... look like BB plugs to me