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New Chevy Small Block crate engine has 405 hp, endless possibilities

With decades of history, the Chevrolet Small Block V8 has definitely stood the test of time, and the company has kept finding ways to make it better. At this year's SEMA Show in November, Chevy Performance is unveiling the latest upgrade to that legacy with the new ZZ6 350-cubic-inch (5.7-liter) crate engine. Offering 405 horsepower and 405 pound-feet of torque, the mill should add a big dose of power to any project car. For the ZZ6, Chevy is working to improve the Small Block's high-rpm performance. To make that happen, the engine has Fast Burn aluminum cylinder heads and an updated valvetrain inspired by the LS family of powerplants. Large intake runners help with the airflow, and the valve springs use a tapered design that allows for less reciprocating mass. The mill also packs a forged steel crankshaft and high-silicon aluminum pistons inside of a cast iron block. Chevy is offering the engine in two versions depending on what the builder needs. The Base configuration comes with an intake, distributor, water pump, and a few other parts but lacks carburetor and accessories. Conversely, the Turn Key option has everything, including the carb, air cleaner, starter, alternator, and more. More details about their availability will be announced at SEMA. NEW ZZ6 CHEVY SMALL BLOCK ADVANCES CRATE ENGINE LEGACY Revised Fast Burn heads with LS-inspired valvetrain enhance high-rpm performance 2015-10-02 DETROIT – Developed with contemporary technologies, including a high-rpm valvetrain, Chevrolet Performance's new ZZ6 crate engine offers builders a modern twist on the classic Chevy Small Block 350. It uses updated Fast Burn cylinder heads with beehive-style valve springs inspired by the LS engine family – a feature that enhances high-rpm capability, enabling the new high-performance engine to achieve 405 horsepower and 405 lb-ft of torque. That's more power than any factory produced 350 engine ever installed in a Chevrolet production vehicle and it's one of the most powerful 350 Small Block-based crate engines in the nearly 27-year history of the "ZZ" lineup. "The new ZZ6 is the ultimate ZZ 350-based crate engine from Chevrolet Performance," said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports.

2016 Chevy Volt powertrain technical details

The last time General Motors launched a Chevy Volt, it was operating without really knowing how people would use the plug-in hybrid. Sure, it had experience with the EV1, but the Volt was a new kind of car, and you can see in the archives just how much time GM spent explaining this fresh, new powertrain to potential customers. Then, once the vehicle was released, the company collected voluntary data from a large number of owners to learn about their driving and charging habits. The company also asked them what they wanted most in the new version. There's got to be an algorithm buried somewhere in GM headquarters that was used to take all of the numbers GM collected and spat out the headline figures for the 2016 Volt: 50 miles of EV range and 41 miles per gallon. Another important number – price – is something GM isn't talking about yet (expect it in April or May), but the company is sharing some powertrain details about the upcoming car. At a preview lunch in Detroit last week for the SAE 2015 Hybrid & Electric Vehicles Technologies Symposium that's happening now in California, GM engineers Peter Savagian (who is presenting a paper on the new inverter used in the updated Volt) and Tim Grewe (talking about the entire second-generation powertrain) sat down with AutoblogGreen to tell us about the Volt's all-new propulsion system: The overall gist is that the new Voltec 5ET50 drive unit is lighter, smaller and more powerful thanks to a redesigned two-motor traction drive. As previously reported, the new engine is a 1.5-liter DOHC four-cylinder that offers 101-horsepower (at 5,600 RPM). Grewe said it's "great for range extension." The electric motor side of the powertrain offers 149 motoring horsepower from a two-motor, continuously variable transaxle. Initially, the new engine will be made in Mexico. GM will move production to Flint, MI during the first year it makes the 2016 Volt. The battery is slightly bigger in the new Volt – 18.4 kWh compared to 16.5 in the current-gen – and will have less range variation in the cold. GM is also using more of the overall capacity in the pack in the 2016 Volt than in previous versions, but is not saying how much more. GM is not ready to publish acceleration times just yet, but the 2016 Volt has improved numbers, especially when going from 30-60 miles per hour. Most everything on the new powertrain has become more efficient compared to the first-gen Volt.

2016 Chevy SS gets new face, clears throat

Chevy is tweaking the SS once again for the 2016 model year. While the changes might be minor, muscle sedan enthusiasts shouldn't need any more excuse to love the Bowtie brand's performance sedan. The 2016 Chevy SS benefits from revised front-end styling that incorporates new vertical ducts designed to direct airflow over the front wheel wells. It also gets new LED lighting and new functional hood vents to make it look even more aggressive than the current model. Although the 6.2-liter V8 carries over unchanged from the existing version – churning out 415 horsepower and an equal amount of torque – a new dual-mode exhaust promises to be both quieter at lower speeds and angrier-sounding at higher revs. And of course you can still get it with a six-speed manual or automatic transmission. In any event, it should also look the business with its new 19-inch alloys as well. Related Video: 2016 Chevrolet SS Designed for Performance DETROIT – Building on the performance-oriented updates made to the Chevrolet SS last year, the 2016 model features several exterior enhancements that reinforce its presence on the road. A revised front fascia features new, vertical ducts at the outer edges to direct airflow over the front wheel openings to improve aerodynamic efficiency. The fascia also incorporates new LED signature lighting, while new, functional hood vents and new-design 19-inch cast-aluminum wheels contribute to a stronger appearance for the rear-drive sports sedan. "The 2016 SS design changes more fully express the true driving character of the sedan while further enhancing the car's overall performance," said Todd Christensen, Chevrolet Performance Car marketing manager. What hasn't changed is the SS's unique blend of performance, comfort and spaciousness. It features a 6.2L V-8 engine under the hood and turns out an SAE-certified 415 horsepower (310 kW) and 415 lb-ft of torque (563 Nm), and offers a six-speed manual transmission or a paddle-shift six-speed automatic transmission. A new, dual-mode exhaust system for 2016 complements the V-8 engine with quieter performance at low engine speeds and a more muscular engine note at wide-open throttle.