[Scrrem]

Originally Posted by Hib Halverson

I don't understand what prompted this research?

Has there been instances of the crank plugs "blowing" out?

Yes Hib, I recently did a 380 stroker build with an offset ground crank. After the griding process, the crank was heat treated and I was unaware that the plugs had not been replaced. The heat treating process took all the tension out of the plug side wall. When my motor was fired up for the first time I blew out a rear plug with 60 psi of oil pressure. Phil assisted me in replace all the crank shaft plugs. This test was just to satisfy his natrual engineering curiosity on what kind of pressure that the plugs would stand up to.
Rich