Supercharged Silverado Is Too Spicy for the Dyno
Stealthy supercharged Silverado packs a beastly 427 that makes over 1,000 wheel horsepower, and it’s too much for the roller dyno.
Breaking news! You can make a lot of power with Chevrolet’s LS platform! Alright, alright, you’re probably more than familiar with that being the case. In a world of LS-based vehicles routinely pumping out over 1,000 horsepower, people are understandably jaded. However, this supercharged Silverado will make you turn your head. This ferocious monster makes over 1,000 wheel horsepower courtesy of a Magnuson supercharger. Pushing those numbers with just a roots blower for forced induction is nothing short of spectacular.
This monster of a truck recently made an appearance on the YouTube channel Late Model Performance. Of course, it’s far more than just a stock iron block engine with a Magnuson supercharger pumping out these numbers. Still, the truck itself is quite unsuspecting. Aside from the intercooler up front and the slicks at the back, this thing looks like regular old traffic. Let’s dive into the specs of this killer build.
Big Displacement, Huge Amounts of Boost
The man in the hot seat during the tuning session gives us a bit of a rundown on the truck. It used to have a stock iron-block 6.0-liter, but after cracking a couple of sleeves, the owner had Late Model Performance build a Dart Machinery 427 cubic-inch engine. It’s mated to a 4L80E, uses a Holly Dominator engine management system, and has an extra spicy ported Magnuson supercharger.
“We’re spinning this Maggy pretty hard. It’s ported, 120, and we’re upwards of probably almost 26,000 RPM on the blower. So that’s pretty aggressive,” says the tuner.
Immediately, he is concerned about how the truck will put the power down on the dyno. He states that he’d prefer to have it on the hub dyno, but they don’t have adapters to run it. Those concerns were validated instantly when the truck spun on the dyno during a pull.
Eventually, though, they got the truck to cooperate, and the numbers are insane. 1,079 horsepower at the wheels is already nuts. However, the eye-watering torque output of nearly 1,400 pound-feet is damn near unimaginable. How could this thing ever hope to put that power down on the streets? The near-instant spike of that torque on the graph tells the whole story, too. If you were behind the wheel of this monster, you’d want to have a real light touch on that accelerator. Otherwise, you’ll be facing the wrong direction before you even have time to think about it.
YouTube always has a way of showing us something outstanding once we’ve seen it all. Go check this video out and listen to this monster roar on the dyno.