Question about NGK R5671A-10 Plugs, Where to Buy and Reading

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by TADHemiracer, May 14, 2017.

Tags:
  1. TADHemiracer

    TADHemiracer Member

    Joined:
    Dec 9, 2010
    Messages:
    340
    Likes Received:
    12
    I have been using the NGK R5671A-10 stock number 5820, which is a silver colored or plated plug. I ran across some NGK R5671A-10 stock number 6239 which is a gold colored or plated plug. Question is: do both plugs read as well as each other or is one better than the other one for reading the plugs? I am having a hard time finding the stock number 6239 plug. Any suggestions. Roots blown hemi. PM me if needed.
     
    #1
  2. kosky racing

    kosky racing Comp Eliminator

    Joined:
    May 11, 2003
    Messages:
    558
    Likes Received:
    16
    The gold colored plug is very old -they did away with that plating in the early 80s I believe no big differance in how they read or perform-
     
    #2
  3. Mike Canter

    Mike Canter Top Dragster

    Joined:
    Mar 10, 2004
    Messages:
    3,987
    Likes Received:
    53
    Yes both plugs read the same. Something in the gold coating was suspected of causing cancer so they changed the coating. The coating on the 5671 is the same coating used on the 6061 plug. All is good.
     
    #3
  4. WIZBANG

    WIZBANG Member

    Joined:
    Nov 8, 2004
    Messages:
    748
    Likes Received:
    1
    RockAuto $ 1.36 each
     
    #4
    T/D racer likes this.
  5. GregM784

    GregM784 Member

    Joined:
    Aug 24, 2008
    Messages:
    829
    Likes Received:
    1
    Rockauto FTW. Buy enough the shipping is free, and it's an even better deal.
     
    #5
  6. TADHemiracer

    TADHemiracer Member

    Joined:
    Dec 9, 2010
    Messages:
    340
    Likes Received:
    12
    Great! Thanks guys!
     
    #6
  7. BEDNAR1320

    BEDNAR1320 Member

    Joined:
    Oct 8, 2008
    Messages:
    195
    Likes Received:
    9
    Rockauto X3
     
    #7

Share This Page