You can whip up a 1/2" plate adapter pretty quickly.

All of the GM Type2 pumps have the same bolt pattern, none of which will "bolt-on" to your Hemi.

I have a Type2 PSC pump on my 5.7L.

1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]