New G3 Hemi Block...

Here is another aluminum block option that is being released this year. Gen3 Performance Parts Hellcat Replacement Aluminum 4.050 HEMI Bare Block - Water Version 2021
Good up to 1800hp. It doesn't say what the max size is but a 4.185 max bore can get you at least 440ci


Evidently the kids and whoever else is doing G3 stuff will spend double the money the old Chrysler guys will.