The Supercar Registry

The Supercar Registry (https://www.yenko.net/forum/index.php)

- Technical & Restoration (https://www.yenko.net/forum/forumdisplay.php?f=86)

- - Plugs (https://www.yenko.net/forum/showthread.php?t=103445)

olredalert

02-22-2009 08:36 PM

Plugs

-----What would an R43S AC sparkplug be correct for??? Does the "S" denote short??? Would this plug work in a correct 69 Z engine??? Thanks.........Bill S

Salvatore

02-22-2009 08:47 PM

Re: Plugs

Correct plug for a 69 Z. To cold IMO. S=extended tip.

Chevy454

02-22-2009 09:04 PM

Re: Plugs

https://www.yenko.net/attachments/322679-plugs.jpg

This link has some more info as well: click

Mr70	02-23-2009 01:08 AM

Re: Plugs

Bill
Various engine equipped 1967-68-69 Chrysler Imperials,..Dodge Dart-Coronet-Charger & Dodge Trucks,..Plymouth Barracuda,...Oldsmobiles Cutlass F-85,all came w/AC R43S=Extended tip spark plugs originally from the factory.
Even International Harvester Trucks throughout 1973-1976.
Their detailed engine lists are too extensive to post here.

olredalert

02-23-2009 05:36 PM

Re: Plugs

------Thanks to all!!! Apparently usable but not optimum???........Bill S

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