spark plug recommendation needed

[fried okra]

I've been running Autolite 3076 spark plugs but they are too cold a heat range for my usage.

The hotter Autolite 3077 is no longer available.

Does anyone have a recommendation for a slightly hotter plug from another manufacturer.

Thx!

[J Franklin]

Champion 3X works great in a model A.

[fried okra]

Thanks, I've got some used 3X's that came out of my engine before I tried the Autolites.....but the 3X plugs are SUPER expensive now

[AL in NY]

3x plug expensive compared to other plugs, but they will last 25-30,000 miles which is probably 15 years worth of driving, that expense over that long a time shouldn't be a problem.

[Synchro909]

I'm feeling more than a little peed off at the moment. I've just seen on the Snyders site that the TT10 plugs are no longer available. I use them not because they are cheap but they work so well and for so long. I get a minimum of 70,000 miles out of a set but for no longer. My cars are drivers so I am switching over to 14mm plugs in adaptors. They should be more durable, cheaper and readily available anywhere.

[fried okra]

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Which plug you going to Synchro?

[Gary WA]

3X plugs can come apart and glass bead them clean!!

[Synchro909]

Originally Posted by fried okra

Which plug you going to Synchro?

I'll use the NGK BP5E plugs.

[fried okra]

The NGK BP5E sounds like what I might wanna try.

Or, is anyone using the Autolite 66 plugs now?

[Bob Bidonde]

I have been running Motorcraft TT10 Spark Plugs with excellent results for many many years.

[goldie]

I have been very happy with Champion 589/W89D described as an agricultural equipment plug. Has a very long electrode/insulator, was told Pikes Peak racers use this plug? Buy direct from Champion, not a common plug.

[700rpm]

Interesting, Fred. What is your usage? I’ve been running new Autolite 3076 plugs since October ‘23 and have found them just fine for around town driving. Haven’t been on a long tour with them yet. (I’d use the Champ 3x plugs if I was rich, but alas…)

[fried okra]

Good input group, thanks.....some choices available now it seems.

700rpm.....my usage is typically low speed on neighborhood roads, nothing high speed. I had a new set of Autolite 3076's in it, only bout an hour of runnng on them, but lost spark and in trying to diagnose that issue had the plugs out to hand crank it, and noticed the new Autolite 3076's were sooty, just like the Champion 3X's in there prior.

The Autolite 3076 is a slightly "colder" plug than the 3X I read. Therefore, the 3076 plug auto be good for a long tour would think.

[JimK1930A]

No matter what spark plugs you choose, you can buy them through NAPA or O' Rielly's. They can order them directly from Champion. If you order them from NAPA and are a AAA member, you can get the member discount. This what I have done.

[JimK1930A]

I should also add that when you order your spark plugs from NAPA or O'Riely's, the prices are much less than what the catalog charges.

[JimK1930A]

This is what I use.
CHAMPION W16Y SPARK PLUG
PART #: 17710
$12.50 /EA
It is a hot plug and works great for my city speeds between 30 & 45 mph.

[700rpm]

O ‘Reilly gives a vet discount also.

[Ruth]

Rock Auto Champion W16Y $6.77, 3X $29.79.

[JayJay]

Originally Posted by Bob Bidonde

I have been running Motorcraft TT10 Spark Plugs with excellent results for many many years.

Bob - same here, but TT10 are now unavailable 😢.

[rackops]

Champion reproduction 3Xs aren't dramatically expensive and they can come apart to be restored like their predecessors. I was picking them up for $1-$3 a pop at Hershey this last year.