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rotorwrench · 10-17-2019, 01:59 PM

The plugs will likely fire whether they have a single coil with a distributor or the original 4-coils and a timer. The principle is similar but a single coil won't put out a shower of sparks like an old trembler coil will. The Model T used the 1/2 NPT thread plug so there are not a lot of choices about what plug is used. If an aftermarket head was set up for 7/8 thread plugs like a model A XXX or the H-10 plug like a flathead V8 then a person could use those plugs. Otherwise it's use what you got.

10-17-2019, 01:59 PM	#24
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Model T Sparkplugs The plugs will likely fire whether they have a single coil with a distributor or the original 4-coils and a timer. The principle is similar but a single coil won't put out a shower of sparks like an old trembler coil will. The Model T used the 1/2 NPT thread plug so there are not a lot of choices about what plug is used. If an aftermarket head was set up for 7/8 thread plugs like a model A XXX or the H-10 plug like a flathead V8 then a person could use those plugs. Otherwise it's use what you got. Last edited by rotorwrench; 10-20-2019 at 08:34 AM.