I bought a 1972 Dodge Demon 340 and put the W2 heads, Offenhauser port o sonic intake, replaced the exhaust from the manifolds on back. I really liked the front drop 3rd member Chrysler ran in those days, especially with the Detroit Locker I put in. For a small block, there were a lot of big block cars who saw my tail lights! The hemi was not the quickest street engine-sort of like the Boss 429, both of them required a lot of RPMs to really get it moving. The 440 was easier to maintain and made great power in the mid range. The hemi had few peers when it came to top end power however.