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Message: <blockquote data-quote="OLD H2S" data-source="post: 1463954" data-attributes="member: 20979">I find the Chinese specs are good and tight, it is the hardening process that is hard, they say this type of metal needs this time and temp to get this result and that is the hard part. I have worked in China, and on tight procedures it always came back to the base metals. What was sold as 4130 was really 4130.57342911 when tested and the next lot would be a different number driving you crazy as a production engineer. It is not that the cranks are bad it is they are not going to to be as tough as USA crank and no one has ever seen a broken cast 4.6 Ford crank. Now Kellogg is used for a reason and you have to decide if your reason is good enough. I like what Eagle and Comp Cams is doing with micropolishing, it is an inherent power adder through reduction of friction.But you're back to how fast do you want to go and how much do you want to spend?But you are listening to the king of overkill so my opinion is worth squat.</blockquote>