Best Spark plugs?

[Gerald]

a spark is a spark, as long as the gap is correct. The difference is the heat range so unless you are running some serious performance, it won't matter. Service is well under the life of both and the working heat index just means a stronger spark at a higher compression/tune. If you are stock, its NOT going to matter. BOTH are within spec.
WHAT DOES matter is the coils. I suggest you upgrade to the overhead coil packs MOD.

Don't believe that's correct, if everything was equal, they wouldn't produce different heat ranges. I wouldn't do it, I'd wait for same heat range, buy from several suppliers if I had to. To Turbo200R4's point don't think it would take anywhere near 10,000 miles to read distinct differences. I agree to the coil over plug modification is worth doing, but I'd buy an extra one or two for spares.

 

[Mongler07]

Don't believe that's correct, if everything was equal, they wouldn't produce different heat ranges. I wouldn't do it, I'd wait for same heat range, buy from several suppliers if I had to. To Turbo200R4's point don't think it would take anywhere near 10,000 miles to read distinct differences. I agree to the coil over plug modification is worth doing, but I'd buy an extra one or two for spares.

Yea your probably right on the heat range, but what's the worst it's going to do? Both plugs are techically within spec. The higher range is just for a higher tune for more advanced timing and or compression / anti knock.
Imo if you are stock it would make no difference. Theoretically!
Remember triumph does odd things for odd reasons EAPECIALLY when it comes to electrical stuff.
I'm in the same boat as you and if it was me I'd make sure there all the same either way. But in a pinch or for a while till you can get right parts, it's probably fine

 

[rumpletom]

Don't believe that's correct, if everything was equal, they wouldn't produce different heat ranges. I wouldn't do it, I'd wait for same heat range, buy from several suppliers if I had to. To Turbo200R4's point don't think it would take anywhere near 10,000 miles to read distinct differences. I agree to the coil over plug modification is worth doing, but I'd buy an extra one or two for spares.

 

[Kevin frazier]

Go with e3 or stock ones but same heat range as gerald said

 

[Kevin frazier]

Hey can you snap a picture of the initial signature of the guy that did your pin stripes since you got seat off? Its on the edge, exhaust side, where seat would touch, above rear tank bolt to right of bolt. Thanks

 

[rumpletom]

Hey can you snap a picture of the initial signature of the guy that did your pin stripes since you got seat off? Its on the edge, exhaust side, where seat would touch, above rear tank bolt to right of bolt. Thanks

 

[Kevin frazier]

This initial its from one of two men i believe in the uk that do the pin stripes

 

[rumpletom]

Can't find a name in the area you described, bought it with stripes not sure if the artist is local,am considering a new paint job with the new Mazda red I think would look pretty sharp