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while anything is possible, the way that rod broke could only be a PTV issue. simply put an NA engine would not produce enough force against that rod to snap it.
My money is still on the single bolt cam. a forged powdered rod is much less likely than a tiny dowel pin. Like I said, ask any Ford engine builder that is building an engine if he trusts a single bolt and a dowel pin. As much as I love GM and LS engines, it isnt the first engine to have this flawed design.
Again, just because so and so built a few of these cars with one and it didn't fail using a single bolt doesn't mean its safe. Now ask someone with a single bolt cam that DID fail if its a good idea. trust me, it would be way simpler for every install we do to use a single bolt cam, less parts to keep in inventory. But we knew 5 years ago when this design came out it was a mistake on GM's part. Maybe not for an OE application, but for the performance enthusiast it it. Again, ask yourselves why after 5 years of using the single bolt, the LS7 still uses a 3-bolt. Why does GM bother to keep making a part using a setup that so many on this board say is unneeded. GM scrutinizes every part used in every aspect of assembly to save money, and they way it against possible warranty cost. There is a reason they have not made the transition in every engine.
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