Mopar ( Tube Kit ) info requested !

nm9stheham said

Next question: What is the hardness of the copper tube? Like water piping, which is rigid copper? Or soft copper so it can be peened easily?

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I'm just using water pipe out of the MSC catalog. It's a bit tougher, but don't forget that lifter will still rub against that tube.

I bought an X block (for damn cheap) that was tubed with aluminum. Several bores had been worn through. So I just ran the reamer down there and got rid of the aluminum and used brass.

That block is still floating around out there.