A souped up 5.3 that is ready and willing to deliver!
Continuing the tradition of great small-block V-8 engines, the 5.3L LS engine has been one of the most popular
we’ve ever built. It’s been installed in millions of GM-built pickups, work trucks, vans, and SUVs. But, leave it to the
GM Performance Parts engineers to go one step further and upgrade the 5.3L LS. The result is a High Output 5.3 that
is just as capable serving as a workhorse—it’s just a little bit more fun.
We started with the base engine—the tough, proven, and dependable 5.3L engine. It’s the same long-lived production
engine that you’ll find in our award winning full-sized truck and SUV line. The stock 5.3 offers a dependable 295 horsepower
and 325 lb.-ft. of torque from the 96mm bore by 92mm stroke engine design.
What makes our LS327/327 crate engine so special is that our engineers added a GM Performance Parts performance
cam and Grafal-coated pistons. With these simple upgrades, the LS327/327 kicks out 327 horsepower and 347 lb.-ft. of
torque. And, just like the stock 5.3, the LS327/327 is capable of thousands of miles of dependable service while returning
outstanding fuel mileage, thanks to the superior design of the LS Family of engines.
Try the LS327/327 crate engine by GM Performance Parts. Your truck will thank you!