Chevrolet has revealed a new LS427/570 crate engine — an enhanced version of the production-based LS7 7.0L engine that offers more horsepower, more torque and apparently, easier installation.
A new, high-lift camshaft developed specifically for this engine helps produce an estimated 570 hp and 540 lb-ft (732 Nm) of torque — an increase of 65 hp and 70 lb-ft (95 Nm) 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, the company said.
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. – Jessica Earl, GM specialist marketing group manager
Additional engine highlights include:
- 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
- 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
- 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
- 14-inch Camaro Z/28 168-tooth manual transmission flywheel
The new LS427/570 engine can be ordered via Chevrolet Performance dealers in the United States. More info here.
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