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All ignition related articles
- Posts: 32
- Joined: Sat Aug 21, 2004 9:52 pm
- Location: Massachusetts
Quick one here.
48 through 50 Panhead, Besides harley 3-4 spark plug
what type on Champion, NGK, Autolite etc. ???
Champion #'s would be fine. Correct gap ?
Thank's Ron Bonham3
- Site Admin
- Posts: 2513
- Joined: Wed Dec 12, 2001 9:17 pm
- Bikes: 1954 FL
- Location: Holland
NGK: Part No. Standard R5670, Plug Gap .030
Autolite (1948 - 1974): standard 4275, Premium MP4275 gap: 0.25
Champion: J-12Y or J-12YC
- Posts: 119
- Joined: Fri Jul 01, 2005 2:44 pm
- Bikes: 49 fl,71 honda 750 sohc k1,98 cbr600f3,2)gl1100 goldwings
- Location: hopewell va
you can also run the autolite number 75 plug,it fits older chrysler big blocks and older as in 60`s era chevys also,been runnin em for ever and have not had any problems.