CHEVY: LS427/570 BIG-BLOCK

Latest CHEVY: LS427/570 BIG-BLOCK LS7 crate motor boasts more of everything, including ease of installation in a variety of vehicles.

CHEVY: LS427/570 BIG-BLOCKChevrolet Performance today 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 pound-feet of torque – increases of 65 horsepower and 70 pound-feet over the regular-production engine. 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.

“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:

*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 this engine. The new LS427/570 is available for immediate ordering through Chevrolet Performance dealers and retailers.

For more CHEVY: LS427/570 BIG-BLOCK GM Performance engines and accessories, please visi t https://www.chevrolet.com/performance-parts

 

 

 

 

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