1,000-HP Cadillac CT5-V Blackwing Makes 842 RWHP, Supercharged V8 Sounds Insanely Good

Enter Hennessey Performance Engineering, the Texas-based tuner from Sealy that made a name for itself by squeezing out as much oomph as technically possible from road-going vehicles. The H1000 package for the CT5-V Blackwing levels up the sporty four-door sedan to a Bugatti Veyron-rivaling 1,000 horsepower and 966 pound-feet (1,310 Nm).

In a rear-drive car that can be specified with a manual transmission, said output numbers are indeed spicy. How much of those resources actually get to the rear wheels of the H1000 CT5-V Blacking? The answer is 841.66 horsepower and 765.18 pound-feet (1,037 Nm) as opposed to 598.56 horsepower and 633.05 pound-feet (858 Nm) of twist in fully stock flavor.

John Hennessey describes the H1000 package as the Exorcist upgrade in four-door form, which is pretty accurate. However, bear in mind that a Camaro ZL1 Exorcist makes a little bit less torque at 883 pound-feet (1,197 Nm) than the H1000 CT5-V Blackwing.

Covered for two years or 36,000 miles (57,936 kilometers), the H1000 package begins with a high-flow supercharger upgrade and high-flow induction. Hennessey spruces up the LT4 small block with a hotter camshaft, ported cylinder heads, upgraded valve springs and retainers, intake and exhaust valves, lifters, and pushrods. Of course, this level of performance wouldn't mean a thing without proper cooling. An oversized heat exchanger is included with every build, along with sportier cats and long-tube headers, enabling the V8 to breathe out better.

Of course, less restrictive catalytic converters and stainless-steel headers also mean slightly more aural pleasure from an already loud vehicle. Every H1000 CT5-V Blacking is road tested for up to 500 miles (805 kilometers) after completion, and every H1000 is gifted with a serialized plaque in the engine bay.

The finishing touches come in the form of model-specific engine management calibration, Hennessey exterior badging, and H1000 exterior badging. Oh, and by the way, the Hennessey-tuned sedan wouldn't have produced this much power without an auxiliary fuel system. Unfortunately, we don't know how much dino juice this fellow drinks when driven normally.

According to the Environmental Protection Agency, the CT5-V Blackwing is good for 16 miles per gallon (14.7 liters per 100 kilometers) with the 10-speed automatic or 15 miles per gallon (15.7 liters per 100 kilometers) if equipped with the manual transmission. Conservatively speaking, the H1000 is in the low 10s on the EPA's combined test cycle.

The dyno-proven upgrades of the H1000 result in a top speed exceeding 205 miles per hour (330 kilometers per hour) and zero to 60 miles per hour (97 kilometers per hour) in merely 3.5 seconds. Quarter mile? That'd be 10.1 seconds, thank you!