Exhaust Manifold Hardware

6pk2goDemon said
Can someone confirm for me that the conical washers belong only on the front & rear manifold runners. The center runners just use flat washers with the bolts.

Is this correct for 318 exhaust manifolds ?

You should use the conical washers on all the "thin" ears. The bolt holes that are thick only require a regular "hardened" flat washer.

treblig