the 4340 material is a ANSI spec so if its Chinese, Italian, German, Russian, or American steel, if its sold here it has to pass that spec, so 4340 is 4340.

It is my engine, and the rod should be just fine in any engine, especially if checked over. This is going to be balanced also so that's gonna aid in the debate as well.

If it blows up Ill post it and take the heat, but a 440 cranked 383 at 433ish CI balanced with lower compression and a decent cam on mild valvtrain isn't going to go much north of 6500 RPM, so it should live just fine.

THis was an honest post asking an honest question not intended to be a pissing match.