How often do you think, the 2014 Chevrolet SS does not produce enough power? Apparently, it is a performance sedan with over 400 horsepower crammed into its engine bay and still, it isn't enough for many motorheads. More is always better and in the case of the Chevrolet SS and its V-8 powerplant, there's even more to be had than just 415 horsepower.

Callaway was first to come forward to inject some pop into the 6.2-liter, V-8 engine with a nice tuning package. With it, the Chevrolet SS pumped out 570 horsepower and 535 pound-feet of torque. Now, that's what you call a performance sedan. At least, Callaway seems satisfied with the output.

Our friends from Texas aren't far behind either. Hennessey->ke1863 Performance has put up a teaser video of what we could expect form the world-famous tuning house. The video shows a base-line dyno run of the 2014 Chevrolet SS->ke4344 sedan. On the dyno, the SS clocks 359 horsepower at the wheel and 367 pound-feet in factory-spec, which seems about right.

Although, information about the Hennessey-tuned Chevrolet SS is scarce, we believe Hennessey->ke1863 could be aiming for an output figure of around 600 horsepower. This may be slightly more than the Callaway SS, giving Hennessey->ke1863 a slight lead in tuning the next great Chevrolet sedan->ke142.

Click past the jump to read more about the Chevrolet SS by Hennessey

2014 Chevrolet SS by Hennessey Performance

Hennessey is known to go crazy with their engines and they might even do a thousand-horsepower super-sedan based on the Chevy SS. Anyway, the tuner did share with us some basic performance upgrades that will go into the SS.

The Hennessey website says it offers high-flow air induction systems, engine management tuning upgrades, high-flow intercooler systems, exhaust system upgrades, turbo system upgrades, Brembo brake upgrades, suspension upgrades, and wheel and tire upgrades. That's quite a sizable list.