Project F02

Ok fellas and ladies if your in here, ive got a good 1 goin on here.... I am picking up a 1950 hudson has an inline 6 3 on the tree tranzmittin, he also has another 1950 hudson that he wants to bring back to original, I actually said let go ahead and pull this inline 6 and tranz and u keep it for your other hudson. The old mad was pretty excited I want to do a swap of course. Literally I'm worn out with sbc stuff ls swaps I my self ls swapped my 64 lincoln and they are just to common and boring, kinda like every single mustang out on the road or in a salvage yard where they belong in my opinion. I am a mopar guy to heart mostly 67-71 mopers. I have a 70 duster that strictly a drag car only. So I would really like to do some kind of gen 3 hemi swap for this 1950 husdon. I know alot about ls stuff but ill be honest I have zero knowledge of gen 3 hemi stuff, im thinking in the nabor hood of a slightly pumped up 5.7 or preferably a 6.1 and im fine with stock on the 6.1 the 425hp is plenty enough for this surprisingly 3600lb car and since this hudson is what they call a step down chassis/frame i would like to keep it an automatic, any help would be most appreciated