As posted... different animals but both good. One consideration is the transmission. Gen III hemis are like gen II hemis in one respect... they make their power with good breathing and RPM more than mid range torque like a 440/500.

It takes a good transmission to get the 5.7 to move a full size car well and retain some efficiency. Low first gear, increased stall convertor, lockup and OD with a rear gear that will let it spin. With a 727 I believe it would be dissapointing. A Keisler 4 speed OD would be a much better match.