Has anyone tried replacing and engine bolts, studs etc. with Stainless? My one experience doing this was replacing a steel valve cover with an aluminum one using stainless allen bolts. I experience oil leaks but never spent the time figuring it out and just put the steel cover back on. I know I could have used blue loctite (red is too deadly for me) and maybe that would have solved the problem, but then there was the contraction and expansion factor of aluminum. I also know there are some metals you can't put together as they will react with one another and erode or loosen to some degree. I was wondering if anyone has had any experience using stainless fasteners on any of these die cast engine parts?