Seller notes

1/4 inch thick 4 hole insulated and coated carburetor base gasket for use with Holley 4 barrel carburetors with 1 11/16 butterflies or smaller. The hole bores are 1.62 so it will not work with 1 3/4 inch butterflies like the 850. Great for the Holley 1850 600, 4776 600, 4777 650, 4778 700 and the 4779 750. Will also fit the Demon double pumper carburetors with 1 11/16 or smaller butterflies as well as other brands. We ship these in a box like all our other items so they get to you undamaged....

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