Steel rod life expectancy

[joespanova]

Originally Posted by Ed Wright

Every aluminum rod failure I had pulled into in the middle. Big eng spun freely on the crank, with a good bearing inside. All big end failures I have seen were bearing failures. If it's black, it sure wasn't the rod.
When you set your bearing clearances, think about the expansion rates.

This rod had a clean break right in the middle of the beam...........but the bearing was also blackened and destroyed........along with the rest of the big end in the pan..............the pin end was perfect