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The Cam is very close but there is alot more to a Cam that just the specs shown.Ramp rates at different lifts ect make a big difference in Cam performance.You can take 4 Cams with the same specs but from different grinders and have 4 different looking dyno graphs.
I'm figuring GM went 1 bolt Cams for a cost point of view because the 3 bolt design is stronger.I've seen a few issue's with the 1 bolt and tensioner setup. Every car we build gets a 3 bolt cam gear with a earlier or better chain.Both have alot less slop in them.
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