I hope it is not a cast crank engine. My neighbor (about 2 blocks from my house) has/had a 360 stroker with a 6-71 blower that broke the cast stroker crank and destroyed the 360 block. New engine has a forged crank, and a custom crank pulley support? Not exactly what the term would be for the support, but it has a bracket that connects to the front of the block and has a bearing in front of the crank pulley to support the front crank/pulley assembly. It's a cool piece.

I haven't built a boosted engine, but was thinking of doing the 6.1L Hemi and was reading about the valve seats falling out?
And after I broke the intake valve on the B1-B/S heads, I replaced them with Manley Severe Duty valves which can also take higher temperatures than standard stainless valves.