Ford 4.6L V8 intake gasket surface

Well Devcon would probably work. Or you could take it to a welder and have it TIG welded back flush, then machined flat.

JB Weld. Or a product called Liquid Steel. Fill the divots slightly above the level os the machined surface and allow to cure completely. Then draw-file gently until the filler is flush with the machined surface.

I don't know about JB Weld holding with engine heat, however I use an epoxy product called Pyro-Putty to fill pits or corrosion, in machined surfaces, that get high temps. The product's original application is to fill cracks in exhaust manifolds..

There maybe better epoxies than JB, I use MarineTex, but most of my experience is with less heated areas. Anyway, about this one divet that appears as a line. That sounds like a crack. Don't know how serious this may be if so or if in fact it is a crack but if it is then it will need much more thought than the divet you think you have. Use a magnifying glass to examine, to begin with, or may need Mag-na- fluxing (are our blocks iron?).

disston '95 CV 306K w/ Ford rebuilt long block 125K Was a similar problem killed the original motor

first, thanks to all that responded.

The 'line' one is like a trench that was eaten away close where the gasket's frame failed. It follows the line of the gasket's seal exactly. It's very clearly a corrosion pit. It formed where the coolant and air would have met.

If it's an aluminum manifold, JB weld (24 hour, not the 5 minute) followed by careful draw filing would be OK, weld and resurface better, new manifold best. If it's plastic replace it. HTH< Ben

I should have been more clear. The corrosion pit is on the head. The plastic manifold surface appears fine.