Eagle Cast Stroker Crank- Problems or No Problems?

4" cast Eagle - Had to get it index ground and the metallurgy looked a bit "dodgy" where it had got hot during the grinding.

Auto 392 cui stroker - 420 HP, 450 ftlbs, 10.5 compression, KB forged slugs, internally balanced.

Sees 6000 rpm at the track, had 30 runs and 7000 street miles.

Been in the car almost two years - No issues so far (fingers crossed)

My engineer told me it balanced up a treat.