What plug, W16FS-U or W14-U?

red66toy

Supporting Vendor
Joined
Feb 25, 2003
Messages
4,060
Location
Seattle, WA
Hey guys, I am going to give my cruiser a tune up and was wondering what spark plugs are correct for my 64 F135 motor. They currently have the denso W16FS-Us in them but I read that the W14-U are the ones I need. Is this true? Thanks a lot.
:)
 
Joined
Mar 14, 2003
Messages
4,519
Location
Between Here and There
14m/m x 3/8

which I think are the 14-u

My oem owners manual claims w14 denso or ngk b4

The info I got from treeroot is:W16FS-U are the new nippndenso, W17P are the old nippondenso, although he's out to dinner with Algazy :)

difference being 3/8 or 1/2.. It probably doesn't matter but it'd be interesting to know if the 3/8 is that much better...


I have the ngk b5hs based on the w16... 1/2 reach. HUMM.. :(
 
Last edited:

red66toy

Supporting Vendor
Joined
Feb 25, 2003
Messages
4,060
Location
Seattle, WA
Marks in Colorado? That would explain his absence lately. Thanks for the info, I am going to order some tomorrow.:D
 

treerootCO

Where are my keys?!
Joined
Jun 2, 2004
Messages
3,692
Location
Wheat Ridge CO
Website
home.comcast.net
3/8 reach is correct....thanks to Cruiser Nerd we now have this chart
FJTSB009.jpg


This is the OEM plug.....
1111.jpg
2222.jpg
3333.jpg
 
Last edited:

Users who are viewing this thread

Top Bottom