413 vs 440??

I was originally planning on putting a 318 in my scamp which has a slant 6 in it now.. but when i went to look at it the guy informed me that he also has a 413 and a 440 for sale. 500 bucks for either one, complete engine. Im planning on making it a street car but will b taking it to the drag strip every now and then. I was wondering what would b a better choice for my 73 plymouth scamp.....and what are the types of things i should look for before purchasing the motor?