Part Type: Carburetor Mounting Gasket. Carburetor Gasket. 1977 Ford Custom 500 Engine: 5.8L V8;EngineVersion: Modified; EngineVIN: H; FuelSystem: 2BBL; Position: Spacer To Intake Manifold;. 1977 Ford Custom 500 Engine: 6.6L V8; Position: Spacer To Intake Manifold;.