Which is easier/less expensive conversion for 73' A-body (Duster) from Slant 6 to 73' 440 or 2011 5.7 Hemi?

 

I would say the 440.

 

DD -

Not familiar enough with the 5.7 to make a call.
With the 440, you're looking at the entire drive train, suspension mods and possibly the K-frame.
Good news is,it's been done, more than once; and lets be real, it just looks better,

Archer

 

440 for sure, if you go with the hemi you will get into the K member and front suspension, the conversion parts are not cheap...

 

Thanks for everyone's responses. My son and I have almost completed the rebuild on the 440 but considered selling it to buy a 5.7 hemi from my mechanic friend. 99% of parts for a 440 have to be ordered and this will be my son's daily driver so I was considering the modern engine for readily available parts.

If anyone knows where I can get motor mounts for 73 & up A-body Slant 6 to RB/440, please let me know. Also, it would be a major help if someone had pictures of where we have to cut the K-member to clear the oil pump, or recommend an external oil pump so we don't have to cut into the K-member. I'd even take the dimensions and angles on motor mounts to make my own (with the help of someone that can weld).