Hyper vs Forged

Magnum engines, arent they hypereutectic?

I remember changing umpteen plenum gaskets from them leaking and causing a lean condition that had every one of them ping with load, up hill, passing on the freeway........my own 96 1500 360 magnum was driven like that for god knows how before I got it, then I changed the plenum gasket.

No broken or shattered pistons.