59AB Offy heads spark plug reach

Walt Dupont--Me.

Walt Dupont--Me.

Well-known member
I have a set of old Offy heads for a 59AB, The plugs will take a 1/2in. reach. Can anyone tell me what no. plug with 1/2in. reach will replace the AL16 autolite? Thanks Walt
 
I also have older Offy heads, and based on a recommendation posted earlier by Vic (and others), I am using Autolite 437s.
 
Same heads here; am using Autolite 85, which are 3/8 reach but have an extended tip (Power Tip) so they are about .530 inches reach overall.
 
Go to "sparkplugs.com" play around on the website. They give spec's on whatever plugs you are looking for. It is a good source of info. Reach, heat range, dimensions it all there.
 
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