Watch closely at the 0:40 second mark when the transmission shifts down 4 gears from 8th gear to 4th gear, the direct injected engine revs almost instantly. Same bottom end as the LT4, just a bigger supercharger gets you another 100 hp. Ligenfelter has pushed the LT4 engine up to 1,400hp with the stock bottom end.
Swaps, updates and upgrades for GM Gen IV & V engines & drivetrains
