Dress up your FlatheadCompatible with Ford with only the best from Speedway Motors. We have packed together two of our most popular vintage Flathead parts to save you time and money on your Flathead modifications! Kit Contains: (1) Speedway Motors FlatheadCompatible with Ford Compatible with V8 Cylinder Head Chrome Acorn Nut Covers. (1) Speedway Motors FlatheadCompatible with Ford Compatible with V8 Intake Manifold Chrome Acorn Nut Covers. Speedway Motors FlatheadCompatible with Ford Compatible with V8 Cylinder Head Chrome Acorn Nut Covers Make your Flathead Compatible with V8 really shine with these chrome acorn nut covers. These chrome plated cast aluminum acorn nuts snap on over the 11/16" (wrench size) bolts on your Flathead Compatible with V8 cylinder heads. Quick and easy to install for an immediate improvement in looks. They're the perfect compliment to painted or polished cylinder heads. 11/16" Nut Covers. 48 Piece Set. For cylinder head. Speedway Motors FlatheadCompatible with Ford Compatible with V8 Intake Manifold Chrome Acorn Nut Covers Make your Flathead Compatible with V8 really shine with these chrome acorn nut covers. These chrome plated cast aluminum acorn nuts snap on over the 9/16" (wrench size) nuts on your Flathead Compatible with V8 intake manifold. Quick and easy to install for an immediate improvement in looks. 9/16" Nut Covers. 20 piece set. For intake manifold.