Think of a Hipo 273 as the 340s older brother....for me its the internals that these Mopar Performance engines came with, good stuff. Yeah you can build any engine any way you want but at the initial investment why not start with "the good stuff"...:) I am somewhat upset that someone somewhere might junk a 273 because the don't really know what it is, especially a Commando version I thought I saw a regular version on here going for cheap in the classifieds not too long ago. The seller wasn't getting any hits on it at all. I do seem to recall it had the black valve covers with the aluminum panel though.
