Yes if mopar drop 340 when the 360 debut in 1971 and built the 360 to 71 340 spec's the 360 would be the legend, 340 would be the 327 of our story. But if 20 CID means that much than throw all small blocks to the trash heap put a 440 between the fender wells how can a small block compare when there 80+ CID shy. So when I get my 400Hp 273 built what's the quarter mile time gonna be 18's 17's HaHaHa. 340 is the best block to start with 360 close 2nd but cheaper so makes the best deal plus if using stock cranks 360 gonna be more street able and have more torque 3rd don't count out the 318 can be a fun engine and leave the 273 to sucker like me who like to do things the hard way trying to prove everyone wrong. Unless you competive racing a well built and setup car with any of these engines will put a smile on your face.