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    Block off Plugs Big and Ugly BAU Butterfly Block

    Thumbnail Filmstrip of Block off Plugs Big and Ugly BAU Butterfly Block Images

    • Block off Plugs Big and Ugly BAU Butterfly Block
    • Block off Plugs Big and Ugly BAU Butterfly Block
    • Block off Plugs Big and Ugly BAU Butterfly Block
    • Block off Plugs Big and Ugly BAU Butterfly Block
    • Block off Plugs Big and Ugly BAU Butterfly Block
    Purchase Block off Plugs Big and Ugly BAU Butterfly Block

    SKU: JB-438
    Block off Plugs Big and Ugly BAU Butterfly Block Off Plates 4-3/8" for mechanical injection

    $175.00

     


    Big and Ugly  Block off Plug. 

    If you are flowing too much air and want to re balance your system down to suit your engine size  this is for you .  These work great on Mechanical, but for EFI we recommend retro fitting the Progressive linkage .

    Our BAU injector blanks are inserted from behind the butterfly and secure with a bolt and sealer. 5 minute job if it is off the blower 

    Installs quickly.

    For engines not requiring so much air flow, blanking off 1 or 2 butterflies and using a filter in the operating butterfly, helps throttle control.

    You can use as many as you wish.

    When the butterflies are closed they are not visible.

    Also available in 3-11/16", 5" and 5-9/16" (BAU2 and BAU1)

     

    https://www.permatex.com/products/gasketing/gasket-sealants/permatex-permashield-fuel-resistant-gasket-dressing-flange-sealant/