Straw-man argument no one has said 318 is better than 340/360 or a smarter choice but just it’s a capable engine and no reason not to be built especially 400 hp and under if one so chooses. 273 would be a harder argument to make but 350 hp and less could be done easily if one so chooses.
Some people like the idea of a high spinning sb it’s a lot easier and cheaper to make peak power 6500 + rpm with a 273 than a 408 sure it will be a lot less power.
