GM Performance Parts has announced the introduction of its 638 HP LS9 crate motor, set to debut at the SEMA show next week. Yep, the supercharged, 6.2-liter heart of the ZR1 can now be ordered without ...

It's not every day you get to hand-build a 638 HP LS9 engine that'll slip under the hood of a Corvette ZR1. Yesterday was one of those days. Here's how the magic is made.

Right off the bat, let's be clear about this story's title. "Poor Man's LS9" can be interpreted many ways, because wealth is a relative term. So, with the new ZR1 stickering for $103,300 (plus dealer ...

GM Authority Executive Editor with a passion for business strategy and fast cars. Get our GM news straight to your inbox. We'll send you one or two emails a day with the latest GM news coverage. It's ...

The SAE-certified numbers are in. Now it's official: The 6.2L LS9 engine developed for the new Corvette ZR1 makes 638 hp at 6,500 rpm and 605 lb-ft of torque at 3,800 rpm. That makes the LS9 the most ...

Power: SAE certified 638hp @ 6500. Torque: SAE-certified 604 lb.-ft. @ 3800. Get our GM news straight to your inbox. We'll send you one or two emails a day with the latest GM news coverage. It's ...

Domestic and exotic:The former refers to homegrown fare, but also implies the docility of a family pet. The exotic suggests foreign origins, along with alluring connotations of things that are ...