Just read that GM will introduce a weight saving 6.2 LT1 small block this year. The engine is rated 450 hp @6000 rpm - weigh in @ 465 pounds - height 25.3 inches tall - 11.5:1 compression. They focused increasing miles per gallon (26-mpg). To attain the efficiency, there is a cylinder deactivation system - sort of 4 cyl while crossing in the highway. They will offer dry & wet sump.