5.7 Hemi Heavy Duty (HD) vs Overhead Cam Engine

Part of the problem with the Hemi was emissions. So I think the next V8 should be based on the Viper and be an inline valve motor.

The foundation of a motor is air flow and the later Viper heads have been shown to be more than capable with ported heads over 400 cfm.

So do a V8 design using the Viper head as the foundation. Use the cam in cam technology, but maybe reserve it for the SRT motors and leave the current VVT technology on the more “base” motors. Use the current Hemi block as the base but make sure the pushrod angles match the new heads. And add direct injection. Bet it could break 550 hp NA easy.

That would give a smaller V8 that is cheaper to build, have better emissions and be way easier to fit in an engine bay.

I love the Hemi, but I bet a Viper based V8 would be a win-win in the end.