How Much House Power Does A 2024 6.6 Have Power. From a previous 445 hp at 2,800 rpm, chevrolet engineers have increased the l5p’s power to 470 hp. The 2024 chevy with a 6.6 gas engine has a horsepower of 401 at 5200 rpm.if you need further information, feel free to ask!

But under that gorgeous hood, a decision awaits: The new specifications on the 2024 chevrolet silverado hd include a bump of 25 horsepower up to a total of 470 hp at 2,800 rpm.