[MidOHasp]

Scat and Eagle make good cranks. Once you pick a good 4340 forged crank, the price differentials will be based on the finish work on the counterweights. I've heard reports that with a good forged bottom end, you can knock these guys up over 600HP no problem. Girdle the mains and make sure your machine work is done well, you can probably go upwards of 700+hp.

We're running 508 flywheel HP at 6,000 RPM and are going to put in the 6500 chip because 6K just doesn't sound sweet enough. If our valve springs could hold up, it'd probably be safe to 7K+ RPM.

From reading the success stories and the failure stories, I wouldn't go much over 500HP with pretty much stock parts. Get a good Eagle or Scat forged crank and even some H-Beam forged rods and pistons and you can do whatever you want.

JP