Originally Posted by thamjk

the crankshaft, piston/sleeve is the same. So obviuosly the performance is the same as well. The one different is only a matter of tuning.

The heatsink and packaging is obviously different. I am a NOVA fens. Now I don't quite like the nova ways of marketing strategy.

The reason is they only apply some plastic surgery on their so call "NEW" engine such as 353 and selling much higher price.

Compare this 353 to old days NOVAS5 how much different could it be...