Combustion engines come and go, but most of them don’t have the staying power of Chevrolet’s iconic LS motors. The series of small-block V8s has been around for more than 70 years—but soon, we’ll lose one of the most popular ones.

Chevy is ending production of the LS9 Long Block crate motor, as first reported by Corvette Blogger. Looking at the crate motors page on Chevrolet’s consumer section, you'll find that reporting to be true; the word "Discontinued" is plastered over an image of the LS9. RIP.

C6 Chevrolet Corvette ZR1

Photo by: Chevrolet

The supercharged 6.2-liter engine was around for nearly a decade, making its production debut under the hood of the C6 Corvette ZR1. At its most powerful, the LS9 made 638 horsepower. It featured titanium connecting rods, a cast aluminum block, and a forged rotating assembly.