I would probably stick with the FR5-1. I use them in my Accord & have used
NGK in other cars. I have always been happy with them. They have a small "V"
in the tip which helps in spark power and are a lot cheaper than Spitfires.
http://www.ngksparkplugs.com/apps/
Rich fm T-town
99 CC 5.2 Gen II K&N
----- Original Message -----
From: "jay & dana" <jay&dana@telus.net>
To: "DML" <dakota-truck@buffnet.net>
Sent: Saturday, January 27, 2001 3:14 PM
Subject: DML: RE: NGK spark plugs FYI
> I sent a question to NGK about their plugs for our trucks. Below is their
> response about their conversion for Autolites. Sorry guys, I just like
> NGK's and would like to use them in my Dak. One question though, could
> someone explain to me, as this means nothing to me, the difference between
a
> 5/8 hex and a 5/8 ISO?
>
> Thanks for any and all responses
> Jay
> -----Original Message-----
> From: Jon MacQuarrie <jmacquarrie@ngksparkplugs.com>
> To: 'jay & dana' <jay&dana@telus.net>
> Date: Wednesday, January 24, 2001 1:40 PM
> Subject: RE: NGK Spark plugs
>
>
> The problem is that Autolites heat ratings arn't as accurate as ours.
> When you cross there numbers it crosses into two or three of our heat
> ranges. In the Autolite catalog the direct cross is to our 3540 which is a
> BKR6EVX-11. You can use the BKR or the BCPR the difference is that the
BCPR
> is a 5/8 hex and the BKR is 5/8 ISO. Your best bet is to use the
BKR6EVX-11
> stock number 3540. If you have any questions contact me at (248)926-6900
> ext 248.
>
> Sincerely,
> Jon
> -----Original Message-----
> From: jay & dana [mailto:jay&dana@telus.net]
> Sent: Wednesday, January 24, 2001 4:26 PM
> To: Jon MacQuarrie
> Subject: Re: NGK Spark plugs
>
>
> Okay, problem here Jon. You said the Autolite single platinum
> plugs AP3923 and AP3924 cross with the NGK BCPR6EVX-11. But the Autolite
> 3923 is a colder plug than the 3924. What gives? Why the same NGK part
> number for 2 different Autolite plugs?
>
>
>
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