Meanwhile, American car manufacturers are still fixated with two valves per cylinder and OHV.
Chrysler: The 6.4 L V8 Hemi (485 bhp and 475 lb·ft).
Ford: The 6.7 L V8 Scorpion* diesel (440 bhp and 860 lb·ft). This has 4 valves per cylinder.
GM: The all-new 6.2 L V8 used in the Chevrolet Corvette (460 bhp and 465 lb·ft).
Imagine the weight savings (from smaller displacement), greater efficiency, and/or higher performance, with four valves per cylinder and DOHC (Ford 5.0 L V8 Coyote).