Vintage AC Spark Plugs

[Joe Strunk]

I am looking for some help form GM guys with some AC Spark Plugs I have.

My Uncle past away and left an inventory of old vintage spark plugs from most likely the 70's. Most are Ford Autolite variety but some are AC green stripe

Fire Ring 44
Fire Ring 44S
Fire Ring 45
Fire Ring 46N

This is what I have, any info on what they would be used with and are they at all desirable for use by todays standards?

Most info I have found, these were discontinued years ago.

Thanx in advance!

[Billy Nees]

44,44S and 45 are pretty much smallblock Chevy plugs. The 46N is for 62-70? 6cyl Chevys.

[Tim H]

Some of those might be of great interest to muscle car purists, especially old Corvette guys who are often extreme on original parts.

[nhramnl]

Originally Posted by Billy Nees

44,44S and 45 are pretty much smallblock Chevy plugs. The 46N is for 62-70? 6cyl Chevys.

Billy's right on the money, above. The 302 Z28s specified 43 heat range, but it almost always proved to be too cold, so many Z28 owners migrated to 44 (for occasional WOT blasts) or even 45 plugs (for low-speed idling/cruising). Same story for Corvettes with engines like 327/365. Somebody will want them.

[Joe Strunk]

Thanx guys!

I appreciate the help! I have very limited GM knowledge.

I'll try and check with the Camaro and Vette crowd forums

[ss125h]

hi, Glen H, still have any of the #45, sets please call 908-875-8133. thanks

[Joe Strunk]

Originally Posted by ss125h

hi, Glen H, still have any of the #45, sets please call 908-875-8133. thanks

Hey Glen,

Yes I do I have 12 sets of those. Like new still in the box.

[ss125h]

hey Joe, sorry, what i need are #44 plugs, not #45's, please advise on price, for 2 sets. thanks Glen H

[Joe Strunk]

Originally Posted by ss125h

hey Joe, sorry, what i need are #44 plugs, not #45's, please advise on price, for 2 sets. thanks Glen H

PM sent

Thanx!

[ss125h]

Joe, still intrested, could you call me at 908-875-8133, i'm not good at pm messing, thanks, Glen H