Do I need to spot face these screw in stud bosses for guide plates? PIC

I have a pair of new, odd ball EQ Lightning Vortec heads. They came with screw in studs but no guide plates (or any product literature). I know on some heads that used screw in studs but no guide plates, if you want to add guide plates you need to machine the stud bosses down by the thickness of

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Do I need to spot face these screw in stud bosses for guide plates? PIC

Valve Cover Bolt & Stud Service Kit - GT, Fasten your 1996-2004 Mustang GT's valve covers down with these Ford original valve cover studs and bolts

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Package Dimensions: 5.08 H x 8.382 L x 14.986 W (centimeters) Country of Origin : United States Package Weight: 0.4 pounds Fit type: Vehicle Specific

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