Hi guys,

Does anyone know if I will need to buy a new lower adapter or new bracket for my alternator if I buy the Summit ceramic coated headers for my 327 67 coupe?

If you engine has the style of exhaust manifold with a several inch long boss through which the rear bracket bolts, then yes. All headers have a much thinner flange than the front of the OE manifold, so that is the reason for a spacer. I don't have any pictures handy, but I will see what I can find.