spark plugs

[np50dodge]

Preferred spark plug for 218 engine (1950 B2B )??

Noah & Dad

[Plymouthy Adams]

your preferrence...what is your favored brand..proper application and heat ranges available in most brands for your application..

[aero3113]

I have been running champions for a while, once I am finished with my rebuild I have some new Autolite 306's I am going to try out.

[HanksB3B]

  aero3113 said:

I have been running champions for a while, once I am finished with my rebuild I have some new Autolite 306's I am going to try out.

You'll like them! (I think mine are the 306s)

Hank

[tysouthwick]

mine are autolites i got em for exactly 9 dollars at checker

[41/53dodges]

mine are autolites too, 306's, runs great on em, mine were $15 total, though. bumper to bumper was the only place in a 15 mile radius that had them around here!

[Alshere59]

I just went with autolites after finding this while reading the pulgs. Yep contact with pistons. All six of them. Changed the gap by .015. Check the parts as you get them.

Al

[aero3113]

  Alshere59 said:

I just went with autolites after finding this while reading the pulgs. Yep contact with pistons. All six of them. Changed the gap by .015. Check the parts as you get them.

Al

What plugs were you using that were able to contact the pistons?

I did not like the champions that I was using because the top tip of the plugs kept coming loose and I would have to tighten them every so often.

[Merle Coggins]

  Alshere59 said:

I just went with autolites after finding this while reading the pulgs. Yep contact with pistons. All six of them. Changed the gap by .015. Check the parts as you get them.

Al

Contact with a piston is near impossible on our engines. The plugs are over the valves and this is most likely where they make contact. Did you use a long reach plug?

Merle

[Alshere59]

  Merle Coggins said:

Contact with a piston is near impossible on our engines. The plugs are over the valves and this is most likely where they make contact. Did you use a long reach plug?

Merle

I believe your right it would be the exhaust valve. Yep long reach. I bought the "same plug different manufacturer number" according to the parts person. Never checked the length. They did run, I am just not a big fan of making them a zero clearance engine.