Chevrolet is finally adding the Corvette-derived 6.2-liter EcoTec3 V-8 to the Tahoe. For the 2018 model year, Tahoe customers will be able to order the 420-horsepower V-8, paired with several performance parts as Chevy’s new Rally Sport Truck Package, or RST. Included is GM’s new 10-speed automatic transmission co-developed with Ford and found in the Camaro ZL1 and F-150 Raptor. Larger brakes, a free-flowing Borla exhaust, 22-inch wheels, and a monochromatic appearance package round out the RST option. The Chevy Suburban is also getting the RST, but sadly without the larger V-8.

This is a big deal for several reasons.

First and most obvious, this marks the first time the Tahoe is available with the 6.2-liter. Second, this is the first street-performance package ever offered on the large SUV. And unlike most other “special edition” packages offered by Chevy, this one actually improves performance.

Beyond the powertrain upgrades, the Tahoe RST gets Magnetic Ride Control with a performance calibration; larger, 16.1-inch Duralife front brake rotors squeezed by six-piston Brembo performance brakes; and a Borla dual exhaust system Chevy says adds 10 horsepower at the wheels thanks to a 28-percent improvement in flow. These speed parts, along with the powertrain upgrades, are part of the RST’s optional Performance Package. The Tahoe RST is rated to tow 8,400 pounds and is expected to hit 60 mph in less than six seconds.

Sadly, Chevy is not offering the 6.2-liter, 10-speed auto, or Magnetic Ride on the Suburban. RST-equipped Suburbans will only receive the monochromatic cosmetic upgrades and have the option of upgrading the brakes and exhaust.

The Tahoe and Suburban RST will arrive in Chevy showrooms beginning this fall. Pricing has not been announced, but we’ll speculate on that down below. Be sure to click below to continue this story, along with leaving your comments.

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