What timing chain?
JP Performance owns Rollmaster. JP doesn't harden their cam sprocket. JP uses a Rolon chain. The N-Motion timing sets sold by SDPC is a re-badged JP Performance set.
The GM LS2 chain is a Renold chain, made in England. The Cloyes 3153-AL is the top of the line in single chains. This chain is also a Renold chain and as mentioned is blue printed, shot peened and hand assembled. This is the chain that solved the timing chain issue in the Olds Aurora motor in the Indy Racing League several years ago.
In the end, it depends on what you want to spend on the setup to try and minimize any potential for failure. One of the best things you can do is add a timing chain damper, but they are no longer made or sold by GMPP.
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