prefered 69 BB spark plugs

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Sep 16, 2003 | 08:45 PM

Red69

Thread Starter

Racer

Joined: Dec 2002

Posts: 306

Likes: 1

From: N. Charleston SC

prefered 69 BB spark plugs

Hey all...

... I need to replace the plugs in the BB. Previous owner used R44xls... Book calls for R43N.... Was wondering what other plugs are being run... with good results!! Anyone know the difference btwn N and XLS?

Thanks

Sep 16, 2003 | 09:29 PM

marky mark

Burning Brakes

Joined: Aug 2000

Posts: 1,211

Likes: 6

Re: prefered 69 BB spark plugs (Red69)

N is I guess is for non-resistor plug which I believe are the recommended plug. I have used R-43 XLS with much success. It is listed in many manuals as the current plug of choice. R-44XLS is fine too, just a hotter plug. I tried a set of non resistor plugs in it also and could tell no difference either way.

Gap at .035 and you are good to go. Have fun!

Regards, Mark

Sep 16, 2003 | 10:05 PM

69Rat

Racer

Joined: Jul 2003

Posts: 287

Likes: 0

From: Dayton Area Ohio

Re: prefered 69 BB spark plugs (Red69)

Hey Mark.. I run the R44nxls... but I run the gap at 50... I'm running a Mallory Unilite with a pro coil, and Mallory VII CD.... It picked up a bit of torq, and 2 mpg over a 35gap!! It your running a modern ignition.. widen the gap and play with it to see what your beastie likes!

:cheers:

Sep 16, 2003 | 11:28 PM

LAvetteman

Safety Car

Joined: Jan 2001

Posts: 4,660

Likes: 3

From: South Central Louisiana

St. Jude Contributor

Re: prefered 69 BB spark plugs (Red69)

I have used the recommended AC plugs but recently switched to accell shorty plugs due to header closeness. Runs no different, except for the plugs and wires being away from the headers.