Spark plug gap

Discussion in 'Wrenchin' Secrets' started by Buick Bloke, Jan 8, 2012.

  1. Buick Bloke

    Buick Bloke More idea's than money

    Does anyone know what the correct spark plug gap is for a 1972 Buick Skylark 350. She has "73" on the block.
    Thanks
     
    Buick Bloke, Jan 8, 2012
    #1
  2. Briz

    Briz Founders Club Member

    32-35 for stock ignition. When I installed the MSD the directions told me to open them up to 60.
     
    Briz, Jan 8, 2012
    #2
  3. Buick Bloke

    Buick Bloke More idea's than money

    60! Wow! The plugs I bought are pre set at 40. Thanks :TU:
     
    Buick Bloke, Jan 8, 2012
    #3
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    In 1972, the correct gap is .040 FOR THE POINT IGNITION. Plug gap depends on the type of ignition system, and cylinder pressure. More cylinder pressure, and less ignition requires a smaller gap. If your engine is not stock, the stock specs go right out the window. You didn't give enough information in your first post to answer your question.
     
    LARRY70GS, Jan 8, 2012
    #4
  5. Buick Bloke

    Buick Bloke More idea's than money

    She is a completely stock 1972 Skylark Custom 350 sb, with points ignition.
    Thanks.
     
    Buick Bloke, Jan 15, 2012
    #5
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    .040 then. Do you own a copy of the 1972 Buick Chassis manual? How about the owners manual? spark plug gap is in both.
     
    LARRY70GS, Jan 15, 2012
    #6
  7. Buick Bloke

    Buick Bloke More idea's than money

    Yeah, I've got a service manual and I've found that page. Having a lazy day:Dou: I now have a huge dose of MAN FLU... having one of those weeks:rolleyes: Thanks guys
     
    Buick Bloke, Jan 19, 2012
    #7

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