ABSOLUTELY NOT!!!!!!! Heads up on the street or occasionally at the track, in stock form, the 440-6bbl will beat the Hemi.V code is just as good, not as pricey & to some, more desirable. I prefer the 440-6bbl, but for shock & awe a Hemi can't be beat.
If it's numbers matching, which I believe it would be going by your post, I hate to say this, but, you'd be an
idiot to convert it.
If you're thinking about it you obviously have money for a Hemi engine (unless you have one in the corner, in that case, buy a 318 or /6) or, sell the 6bbl, save some pennies and get a HEMI car numbers or clone.