What are a good forged piston for a standard 360 Magnum.

OP, do you have any idea why the land broke? Often, this is caused by detonation. How hard are you using your engine? Using any nitrous? Turbo? More info would be helpful.

The pistons above are not cheap. Hyper pistons are reasonably strong and stronger than regular cast. I've used them in a turbo engine at 14 psi boost with no issues. So that may be an alternative. Silvolite has a 3222HC hyper piston....although the catalog says "Not intended for racing applilcations" so I cannot what that means exactly.

KB232 would be a better hyper piston.... But you have to examine gasket thickness and work on overall compression ratio, as these will stick out of a standard Magnum deck by a few thousandths and are a lot higher in the bore than standard Magnum pistons.