SEMA 2019: Chevrolet Performance’s New LS364/450 Powerhouse

Technology marches forward, and with its progress, graces previous generations with updated components and techniques that weren’t available when first designed. Such is the case with Chevrolet Performance’s new LS364/450 engine (P/N: 19370163). Using a blend of newer components, Chevrolet Performance has enabled owners of LS-based autos the opportunity to upgrade their engines with larger, more powerful options.

With a budget-minded approach, the engineers at Chevrolet have assembled an LS-based powerhouse that not only uses the performance tricks learned over the years, but it also makes them available to those wanting to upgrade their earlier-generation LS-based vehicles. Being able to do so on a budget is just the icing on the cake!

We spoke with Chevrolet Performance’s Bill Martens about this new offering. “This is a really conservative number,” he said. “We made that power with a factory-stock, LS3, EFI manifold.” Bill also emphasized that the final intake, throttle body, and ECU compatibility is left to the installer. While designed to upgrade earlier LS-based engines, ensuring compatibility is near impossible due to the number of swaps and installs throughout the decades.

Swapping an LS/LT engine into a vehicle, one needs to be concerned with items such as reluctor wheel tooth counts and camshaft timing points. The LS364/450 uses the early-style 24X crankshaft and 1X camshaft sensors, enabling easier retrofit installation with the ECUs in early LS-powered vehicles.

The LQ9-based block brings six-liters of fun in a cast-iron foundation. An LS6 camshaft (duration at .050-inch is 204-degrees intake, 218-degrees exhaust) controls the airflow through a set of LS3-based heads that keep compression right at 10.3:1. The engine is sold as a long-block assembly, requiring an intake manifold matched to LS3- or L92-style rectangular intake ports. The earlier LS3- or L96-production intake manifolds can be used, but require an aftermarket adapter plate to use the early LS-style, three-bolt throttle bodies.

Check out Chevrolet Performance’s new 2020 catalog or contact your local Chevrolet Performance vendor for more information or to order your LS364/450 engine!

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About the author

Andy Bolig

Andy has been intrigued by mechanical things all of his life and enjoys tinkering with cars of all makes and ages. Finding value in style points, he can appreciate cars of all power and performance levels. Andy is an avid railfan and gets his “high” by flying radio-controlled model airplanes when time permits. He keeps his feet firmly grounded by working on his two street rods and his supercharged C4 Corvette. Whether planes, trains, motorcycles, or automobiles, Andy has immersed himself in a world driven by internal combustion.
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