Help with Spark Plug Choice - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sicklajoie · 04-08-2016, 04:45 PM

I go against the grain and have always run Autolite 24 Copper Core plugs.

**Already Gone** · 04-08-2016, 06:21 PM

Quote:

Originally Posted by Sicklajoie

I go against the grain and have always run Autolite 24 Copper Core plugs.

Its funny you mention the Autolite plugs. Not knowing what wa sin the truck and how long they'd been there I went and pulled the one closest to front on drivers side and her it is . Its an Autolite # 26 and looking at it I think the electrode looks like it should but I would guess it has been in there a long time.

firedemon · 04-08-2016, 09:43 PM

I would go with the ac plugs and don't forget to open the gap for the electronic ign to .045 should get you 15 easy if everything else is good . back then tolerences and points weren't as good as they are now 100,000 was a worthless engine now its nothing that's why plugs had to be changed so often . I do still have a spark plug cleaner I use for points

04-08-2016, 04:45 PM	#1
Sicklajoie The Niner Join Date: Nov 2010 Location: Broad Brook, CT Posts: 2,515	Re: Help with Spark Plug Choice I go against the grain and have always run Autolite 24 Copper Core plugs. __________________ "A good racer is one whose head is in communication with his balls." - Richie Evans 1970 C/20 - 402/TH400/3.54s - 74K miles 2003 GMC Sierra 2500 - Wheatland Yellow Niner Progression Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=697183 Classic Trucks article: https://www.motortrend.com/features/...et-c20-driven/

04-08-2016, 09:43 PM	#3
firedemon Registered User Join Date: Jun 2015 Location: @ Posts: 890	Re: Help with Spark Plug Choice I would go with the ac plugs and don't forget to open the gap for the electronic ign to .045 should get you 15 easy if everything else is good . back then tolerences and points weren't as good as they are now 100,000 was a worthless engine now its nothing that's why plugs had to be changed so often . I do still have a spark plug cleaner I use for points



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