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What's the difference

Last Subscription Date
10/05/2011
I am working on a Continental AVI 1790 v-12 engine. Stock plugs are a Autolite AER3S None available. Autolite AGR3S is available. What is the difference? Autolite tech dept. tells me once a plug is discontinued all info is purged from their system. Cross ref. is taking me nowhere. PLEASE HELP ASAP
 

DCAmp

Subscriber
Last Subscription Date
02/17/2020
I just looked in my old Champion book AER3S transfers to (x)RML12 Champion. I don't know if that is any help.
 

mmcdonald

Sponsor
Last Subscription Date
04/13/2017
If I'm looking at this right, the "R" is 1/2" reach and the "G" is 3/4" reach and a 2384 would be the modern day equivalent Autolite shielded plug.
 
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