The problem I see is you are going to have different expansion rates between steel and epoxy.
If that's a big issue, how does Belzona work so well on engine blocks, etc., in industrial applications where expansion of steel is a fact of life? I know personally of a tractor engine that has been running for several years with it in place.
I would guess the tractor in question has a cooling system, likely liquid cooling, that keeps the expansion in the repaired area under control.
I wouldnt bet heavily on a repair in a combustion chamber, exhaust port, or turbo housing.
Best,
Ted
