I was in a motor home in a salvage yard and found a Mopar big block under the engine cover. It looks great and is complete. However I know very little about this sort of thing. I am new to the world of Mopar. I am hoping to go out there today with the camera but in the mean time can anyone tell me anything about them. I think the Motor home is a 72 and it looks like it has a 727 behind the engine. Getting it out looks like it will be quite an under taking. Considering I just want to put this engine on a stand in hopes I will get a project vehicle later for it what would be a good price for it? How can I tell if it is a 440 or a 413? If it is a 413 what are the pros and cons of running it? If I get it, it will most likely go in a big truck build later on. I have always wanted a classic Dodge truck or SUV sitting tall with big block power and shining like a new penny.