Thread: When are forged internals needed?

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A cast crank is usually fine as long as you are not going to force induction (blower/turbo) or are going to put nitrous on it....what kills a cranks is a sudden power spike or harmonics that get out of control....use a quality balancer either a TCI or Fluid dampner....those hyperutechtics will fall under the same guide lines.....if you question the rods have them "shot peened" a few more times.....

In my 341(327 stroked) I used a steel crank, already had it, and Lunati forged "lite" piston then sent them out to be lightend another 50-100 grams and I used the factory stock "small journal" rod and it's making 706hp@7800 and lives....