Almost my entire work life as a mechanic has been on machines that have dissimilar metals fastened together with dissimilar metal bolts. All of the machines here at work have steel stuff bolted to aluminum stuff with bolts screwed into the aluminum. Some have aluminum stuff bolted to steel stuff. You pretty much have to use steel bolts on everything 'cuz bolts made out of aluminum, brass, copper, nylon, etc. don't have any strength or durability. Actually, I'd rather try to extract a steel bolt that snapped off in a piece of aluminum, than one that snapped off in a piece of steel.
:veryhappy
Indoors in a climate controlled building, with regular maintenance, yeah no problem.
Race engines, in most motor sports, are disassembled at minimum every couple years and up to a max of every single quarter mile pass. Far out man, again no problem.
Mass produced four popper or six cylinders in daily driver no maintenance cars with aluminum heads, steel block, coolant, and 10 years/100,000 miles +, whole different story altogether. I have worked on such a beast and I can say, never again. Not worth the headache for no amount of money, just replace the whole damn engine at that point.. :no: And I am not referring to extracting the bolt from aluminum, I am talking about head bolts, that passed THROUGH an aluminum head into a steel block, and broke off just below the surface, and refused!!! to budge, and not through lack of effort on my and 2 other peoples, efforts.:aargh4:
Just saying.