Right out of the box, the C7-generation Chevrolet Corvette ZR1 is an absolute monster, rocking the boat with the supercharged 6.2L V8 LT5 engine pumping out 755 horsepower and 715 pound-feet of torque. It’s a hefty sum, no doubt about it, but that hasn’t stopped Hennessey Performance Engineering from adding even more giddy-up with its various engine upgrades. Now, we’re getting an earful of an uncorked ZR1 in the following brief video.
The video is just two minutes long, giving watchers some nice rolling shots of a black C7-gen Chevrolet Corvette as it unleashes its blown V8 up and down some straightaways. This particular vehicle belongs to a Mr. Kimmel, who sent it off the Hennessey for its HPE850 Supercharged Engine Upgrade.
True to the name, the upgrade ups output from the LT5 to 850 horsepower at 6,300 rpm, and 850 pound-feet of torque at 4,300 rpm. Making it all possible is a high-flow intake, new headers and midpipes, high-flow cats, and new tuning. The package also adds new exterior emblems and a set of premium floor mats, all of which pairs quite well with the ZR1’s unique exterior styling and aero.
Interestingly, this is the least-powerful upgrade Hennessey offers, with an HPE1000 Upgrade and HPE1200 Upgrade also on the table.
The extra power is no doubt nice, but what we’re really digging here is the sound. Press the loud pedal to the carpet, and this upgraded Chevrolet Corvette ZR1 unleashes some real thunder, screaming up to redline with one very wicked exhaust note.
It’s enough to paint a smile on anyone lucky enough to be sitting in the cabin, as we see in this video.
“It never gets old,” Mr. Kimmel says as his newly upgraded Chevrolet Corvette ZR1 burbles and pops on deceleration. We wholeheartedly agree.
Does this Chevrolet Corvette ZR1 video get your blood pumping? Let us know your thoughts in the comments, and make sure to subscribe to GM Authority for more Chevrolet Corvette news, Chevrolet news, and around-the-clock GM news coverage.