Autolite Plug Half & Full Thread Question??

[Lightning LA]

I'm getting ready to put another set of Autolite 764's in my N/A 97 Cobra,but I see they have Half Thread & Full Threads.So I was wondering is one better to use in our Cobras over the other,I'm thinking the more Threads on the Plug would be better.But I'm No Mechanic by any means......

 

[COBRA90GT]

From Autolite's website:

http://www.autolite.com/sites/default/a/uploads/en/half_fullthread.pdf

Their "tech" section (helpful for those who want to learn more about plugs, in general):

Tech Specs | Learn More | Autolite®

 

[DVJ38]

COBRA90GT, nice find.

Good question, I'm sure others have had/will have it.