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Chevrolet Performance Introduces New LS427/570 Crate Engine

Chevrolet Performance's LS427/570 crate engine is based on the LS7 and uses a unique camshaft to help produce 570 hp. Photo depicts a production LS7 engine. The LS427/570 assembly includes an F-body wet-sump oil pan and Z/28 exhaust manifolds.
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Chevrolet Performance announced the all-new LS427/570 crate engine* — an enhanced version of the production-based LS7 7.0L engine that offers more horsepower, more torque and, thanks to a simpler wet-sump oiling system, easier installation.

A new, high-lift camshaft developed specifically for this engine helps produce a GM-estimated 570 horsepower and 540 lb-ft of torque — increases of 65 horsepower and 70 lb-ft over the regular-production engine — while the new wet-sump oiling system eliminates the need for the installer to incorporate a separate oil tank, oil lines and other ancillary components to support the production LS7’s dry-sump system.

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“The all-new LS427/570 builds on the legendary, racing-bred performance of the LS7 to create the most powerful naturally-aspirated LS crate engine in our portfolio,” said Jessica Earl, GM specialist marketing group manager.

Compared to the production LS7 crate engine assembly, the LS427/570 features an F-body aluminum oil pan and a specific wet-sump oil pump. Additional engine highlights include:

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  • Unique high-lift hydraulic roller camshaft with 0.591-inch intake/0.590-inch exhaust lift; 227-degree intake/242-degree exhaust duration; and a lobe separation angle of 116 degrees
  • Unique high-rate valve springs
  • Camaro fifth-generation Z/28 exhaust manifolds
  • Low-profile LS7 EFI intake manifold with fuel rails, injectors and throttle body installed
  • Robust LS7 rotating assembly featuring a forged steel crankshaft and titanium connecting rods
  • CNC-ported cylinder heads featuring 2.20-inch titanium intake valves and 1.61-inch sodium-filled exhaust valves
  • Fourteen-inch Camaro Z/28 168-tooth manual transmission flywheel
  • Must be used with LS427/570 Engine Controller P/N 19420000 (sold separately)
  • Chevrolet Performance recommends Mobil 1 15W50 fully synthetic motor oil to be used with the engine
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The new LS427/570 is available for immediate ordering through Chevrolet Performance dealers and retailers. Go to www.chevrolet.com/performance to locate a dealer.

ABOUT CHEVROLET

Founded in 1911 in Detroit, Chevrolet is one of the world’s largest car brands, doing business in more than 100 countries and selling more than 4.0 million cars and trucks a year. Chevrolet provides customers with fuel-efficient vehicles that feature engaging performance, design that makes the heart beat, passive and active safety features and easy-to-use technology, all at a value. More information on Chevrolet models can be found at www.chevrolet.com.

Source: Chevrolet

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