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Best sparkplugs for STD heads

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uwould
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Joined: Sun Jan 27, 2008 3:12 pm

Best sparkplugs for STD heads

#1

Post by uwould » Wed May 07, 2008 1:40 am

What are the best sparkplugs to run in my 58 pan with STD Heads (engine is basically stock) Thanks!! Could NGK BPR5EIX Iridium plugs be run??
http://www.ngk.com/results_appNonUS.asp" onclick="window.open(this.href);return false; ... iveID=4112



panhead
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#2

Post by panhead » Wed May 07, 2008 1:02 pm


VT

#3

Post by VT » Wed May 07, 2008 2:57 pm

Has anyone ever called STD and asked them?
http://www.stddevelopment.com/HEADS.HTML

Robert Luland
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#4

Post by Robert Luland » Thu May 08, 2008 2:07 am

STD Development. Ya got to be kidding right? Garbage is garbage. Bob

mbskeam
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#5

Post by mbskeam » Thu May 08, 2008 4:01 am

Robert Luland.....

please Esplane?

autolight 4265 and a ngk, but I dont have the number right now.
will get it later

well its later ....NGK BP7ES

mbskeam
Last edited by mbskeam on Tue May 20, 2008 1:34 am, edited 1 time in total.

duoglide58
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Location: Oklahoma City

#6

Post by duoglide58 » Mon May 19, 2008 10:37 pm

Has anyone ever called STD and asked them?
This is the response I got from STD when I inquired back in February 2006.
Try Champion RC12yc or RN12yc or Autolite 3924
All I knew at the time was my old AC 44's and 45's from my stock heads were too short to reach inside the chamber of the STD heads.

Doug

mbskeam
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#7

Post by mbskeam » Tue May 20, 2008 1:39 am

champions suck now, use to be a good plug. now all they do is crap out, runs fine, go to start a few days later and plug or plugs are dead. no spark. put in new plugs and it starts right up
atuolight seam to work good and so does NGK
if it has a R in the number it most likely is a resistor plug, keep this in mind.....

mbskeam

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