Champion \"J-??\" has 3/8\" of threads; 2 questions

Unknown
edited November -1 in HUDSON
I want the correct heat (10, I think) range plug, but with a thread depth of ONLY 3/8", rather than the 1/2" depth. Anyone know the correct plug for the 308?

TIA,

John cool.gif

Comments

  • Champion H10C
  • The hotter H11 or H12 (would have to look it up) IS available through CarQuest warehouse, but I use H10Cs in both my Hudson Hornets with 308s.
  • This is a 7X engine (308 + .060") with a 232 head including exhaust valve reliefs milled into the head for clearance, and the stock spark plug is too long.

    I'm told a Champion J10 or J11 will work fine. Maybe Car Quest has them; I'll check. cool.gif
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