Plugging A.I.R. Injection holes

Discussion in 'Street/strip 400/430/455' started by hunter7389, Mar 18, 2018.

  1. hunter7389

    hunter7389 Well-Known Member

    I have a set of '73 heads with the 4 air injection holes on the intake mounting surface, and the B4B that I'm using does not cover them up. I'd like to plug them like TA says is required with the B4B. What are you guys using? 5/16 or so plug?
     
  2. Dr. Evil

    Dr. Evil Silver Level contributor

    TA sells a kit, really cheap, to do just this. I included it in an order for other parts and used them.
     
  3. LARRY70GS

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

  4. CJay

    CJay Supercar owner Staff Member

    Heads should come off the car for this
     
  5. KenneBelle455

    KenneBelle455 Well-Known Member

    I'm curious why you would rethread those holes in the heads rather than just get the right size plug to go in the holes? I've plugged AIR holes in many different engines and have always been able to find the right plugs.
     
  6. hunter7389

    hunter7389 Well-Known Member

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