mobile-menu-icon
GM Authority

ProCharger Offers New Silverado HD, Sierra HD L8T Supercharger Kit

If you own a Chevy Silverado HD or GMC Sierra HD equipped with the 6.6L V8 L8T gasoline engine and you simply need more power, then ProCharger has a solution. The company is now offering a new supercharger package that adds substantial gains in both horsepower and torque, providing the boost needed to perform when towing or charging up a mountain pass. The setup will run on premium pump gas, and will install as a simple bolt-on package.

ProCharger installed on the 6.6L V8 L8T gasoline engine.

Properly installed, ProCharger claims that the new supercharger kit will add 6 psi of boost pressure, upping output to more than 600 horsepower and 700 pound-feet of torque. Compare that to the 401 horsepower at 5200 rpm and 464 pound-feet of torque produced by the Chevy Silverado HD and GMC Sierra HD in stock guise, and this supercharger should make quite the difference when you put your foot down.

The kit includes a dedicated six-rib belt supercharger system, as well as a large front-mounted air-to-air intercooler to make the boost nice and cold. The system was designed to run on premium pump fuel (91 to 93 octane), while PCM tuning is included.

Installation is framed as a relatively simple bolt-on process, which ProCharger says can be completed on a free day on the weekend with basic hand tools. PCM tuning entails sending the unit in to ProCharger, where it’ll get re-flashed and over-nighted back to the owner for installation.

“When ProCharger engineers designed this system, they wanted to make it as DIY friendly as possible,” ProCharger states on its website. “Meaning, there is no cutting, bending, or tweaking of any sort being done to the truck. In fact, the entire system can be removed if you are ever trading in the truck or selling it.”

ProCharger also states that installers are available across the U.S. if you prefer to have a pro tackle the job. ProCharger did not list a price for its Chevy Silverado HD / GMC Sierra HD supercharger kit, but does encourage interested customers to contact the company directly for more information.

Subscribe to GM Authority for more Chevy Silverado news, Chevy news, GMC Sierra news, GMC news and around-the-clock GM news coverage.

Jonathan is an automotive journalist based out of Southern California. He loves anything and everything on four wheels.

Subscribe to GM Authority

For around-the-clock GM news coverage

We'll send you one email per day with the latest GM news. It's totally free.

Comments

  1. I’m sure the transmission can’t wait for all that added power:)

    Reply
  2. I’m sure the transmission can handle the horsepower and torque output. The Duramax
    is sporting the same set-up.

    Reply
    1. They just started using the 10sp allison/gm trans for 2024, all previous yrs had the 6l90. The 6l90 is a good trans don’t get me wrong, but it won’t last long with that kind of power in front of it.

      Reply
      1. You’re absolutely correct. A performance built transmission will surely be needed. On another note,the 6.6 is the only gas engine gm makes that I would trust. 6.2 and 5.3 in the half-tons are hit and miss with the Afm and dfm set-ups. Three quarter ton seems to be the only way to go, if going the gas route.

        Reply
        1. Yeah, no doubt, I’d like to find a newer truck 6.2 in a 1500 that has expired and get a jasper engine that’s been deleted of that cam/lifter killing nonsense. I put a 5.3 jasper engine that came deleted with a programmer and the customer says it doing great.

          Reply
  3. Cool idea, but the 6.6 gasser is already a pig. I’d be afraid of having to live at the gas pump.

    Reply
    1. You’re drunk, go sleep it off.

      The 6.6L L8T for what it’s designed to do, is actually very economical. My 2024 2500 HD hits 17 MPG at 75 MPH on the highway. Also just towed a camper from NC to MI and back, 1,800 miles round trip, including over the Appalachians. Averaged 9.4 MPG for the whole thing going 70 MPH.

      For a truck that scales ~7,400 lbs at the curb. I don’t care who you are, that’s impressive.

      Reply
  4. Same trans as they use in diesel should be okay

    Reply
  5. The 6L90 is a stronger trans then a regular 10speed. The 10spd in the new truck is not an Allison trans , they badged it . The 10spd in the new truck is the same as in my 21 Camaro LT1 and they are not that strong . I have a 22 gmc 2500 with the 6L90 and it tows pretty well and doesn’t get hot at all. It’s a 12k toyhauler . I think the trans will hold for a while .

    Reply
    1. The HD’s use the 10 speed allison now. duramax or 6.6l gasser.

      Reply
      1. It’s an Allison in name only, it’s a gm trans branded Allison but Allison did not make it, its capable but not as strong as the genuine Allison of 2019 6speed, first gens had a lot of problems, 2nd gen not so much. Ford also has this transmission. Most of the parts are interchangeable, gm calls it the 10l1000 and ford calls it 10r140. It was somewhat of a joint venture between the two rivals.

        Reply
        1. You are incorrect. The HD Ford/GM trucks do not share the 10 speeds, half tons do.

          Reply
  6. I assume that the drivetrain warranty goes away.

    Reply
  7. I traded in a 2011 Dmax for a 2021 L8T. At ten years old and 40K it required a $5K turbo job because I didn’t drive it enough or hard enough. And shut down for low quality DEF because the dealer I purchased it at didn’t keep up with the TSBs. Stuck 650 miles from home, thank you. As far as I’m concerned it is a better powerplant the than the Dmax. Way too many other things that will shut you down with the Dmax, just look under the hood. As for a supercharger, I’ll leave well enough alone. At two years old and less than 9K on the clock it won’t be creating any big buck problems. Nothing but Chevrolets since 1969.

    Reply

Leave a comment

Cancel