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It’s Called The LS427/570, And It’s The Most Powerful NA LS Engine Ever

LS7 LS427/570
Chevrolet Performance LS427/570 crate engine.

There’s something about a naturally breathing, steaming, beaming V8 engine. Engines like the Voodoo flat-plane V8 as seen in the Ford Mustang Shelby GT350, or the upcoming LT6 V8 engine in the C8 Corvette Z06, as first teased in the new C8.R race car. But before these monsters, there was the LS7. It hasn’t been found in a production car for half a decade now, but the engine is still considered by many to be the best V8 of the entire LS-engine family. Perhaps the best GM V8 engine of all time to-date. Currently, the 505 horsepower LS7 is only available as a crate motor from Chevrolet Performance. But today, Chevy announced an even more powerful version of it.

Dubbed the LS427/570 crate engine, the naturally aspirated V8 offers more horsepower, more torque a simpler wet-sump oiling system, allowing for easier installation. The power upgrade is courtesy of a high-lift camshaft developed specifically for this engine, delivering an estimated output of 570 horsepower and 540 lb-ft of torque. That’s a power boost of 65 horsepower and 70 lb-ft over the standard LS7.

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 tradeoff for forgoing the dry sump system could mean oil starving the engine during strong lateral force events (like cornering on a race track). So keep that in mind with regard to what you plan on using the LS427/570 for.

There are other differences as well. Compared to the production LS7 crate engine assembly, the LS427/570 features a GM F-body aluminum oil pan and a unique wet-sump oil pump. The exhaust manifolds are pulled from the LS7 engine found in the fifth-generation Camaro Z/28, compared to the C6 Corvette Z06 unit found on the crate motor variant.

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
  • 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

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

What muscle car, truck or SUV would you drop this cammed LS7 crate engine into? Let us know in the comments below.

LS engine LS7
GM LS7 V8 found in the 2014-2015 Camaro Z/28.

Written by Manoli Katakis

Muscle Cars & Trucks was founded by Manoli Katakis - an automotive media veteran that has been covering the latest car news since 2009. His journalism has uncovered dozens of major product changes, updates, plans, and cancellations long before automakers were ready to make things official.

Some highlights over the years of his reporting include the uncovering of the Zora trademark before anybody else reported on the coming of a mid-engine Corvette, as well as the dead-accurate reporting of the coming of the Chevrolet Colorado ZR2, two years before it hit the market, and even before the debut of the concept vehicle. This type of reporting has immediately continued here, with reports of the original seventh-generation Camaro plans being shelved, as well as what's in store for the Chevrolet Silverado.

Some of his work can be found on massive automotive media outlets, such as Motor1. He also has been a guest on the 910AM Radio Station with Detroit News auto critic Henry Payne, as well as the enthusiast-oriented Camaro Show podcast.

Over the years, Manoli has interviewed various automotive industry titans, leaders, and people that make things happen otherwise. These include figureheads such as GM CEO Mary Barra, GM President Mark Reuss, automotive aftermarket icon Ken Lingenfelter, Dodge firebrand Tim Kuniskis, along with various chief engineers of vehicles such as the Ford F-150 & Mustang, Chevrolet Camaro & Corvette, and many more.

At MC&T, Manoli is taking his journalism expertise, deeply planted sources, driving abilities, and automotive industry knowledge to new levels, covering more vehicles and brands than ever before. This is the place where you will continue to read groundbreaking stories about American performance vehicles, pickup trucks, and sport utility vehicles. Here is where you’ll also read insights and quotes from various automotive subject matter experts on the latest relevant products, as well as some of the latest official news from their manufacturers.

Fun facts: he also once beat Corvette Racing driver Tommy Milner in an autocross with a Chevrolet Bolt EV. The biggest vehicle he’s ever driven is a John Deere mining truck. Besides a go-kart, the smallest vehicle he’s driven has been a Hyundai i10. He’s also spent time in the cockpit of various American performance vehicle icons, including the fifth-generation Chevrolet Camaro Z/28, Dodge Challenger Demon, and Ford Mustang GT350R. He has reviewed dozens of trucks, SUVs, and performance vehicles over the years.

One of his favorite new vehicles on the market today happens to be the Chevrolet Colorado ZR2 Bison. He is also a card carrying member of the Sports Car Club of America, and regularly participates in Detroit Region autocross events.

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