Street/Strip short block questions.

Do crank driven superchargers require an extra crank key?
Would a short fill, main studs and good machine work be adequate block prep for a blown 400 street/ strip engine? Probably use forged 383 crank, aftermarket rods and forged pistons aiming for about 8 to 1 compression. It's all a dream right now but we have this neat new forum and I thought I'd ask.

With a 671 the stock key should be all you need.

If your going bigger or monster amount of overdrive, not sure?

The stock mopar keys are beefy compared to some of the brand x