The funny thing about our 'inefficient' v8's is that a ls6 makes more HP per liter stock than a civic. You can get 100 HP per liter out of a ls6/ls1 (That's 570 HP for you dropouts) easily, and still put 100,000 miles on the engine. I'd like to see a 1.7 liter civic make that amount of HP and go for more than 1 run at BMP

115HP/1.7L
67HP per liter

405HP/5.7L
71HP