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Chevrolet Introduces New ZZ632 Rev Engine Crate

Written By, Brad R

Chevrolet has put together a new Chevrolet Performance engine box that will include its latest powertrain option. This is not an ordinary engine option as it provides 1,004 horsepower with 876 lb-ft of torque in a complete 93-octane crate engine. The massively powerful crate powertrain is known as the new ZZ632 Rev and its whopping four-digit horsepower engine is the most robust Chevy has ever offered in a crate. We have learned some of the impressive details that have made this new lone-powertrain offer quite an astonishing piece of equipment, as Chevrolet has worked on some impressive new engineering perks to debut in the coming years.

All-New Chevrolet ZZ632 Crate Perks

Those who opt for the ZZ632 will gain the perks of peak power at 6,600 rpm, while the output hits a maximum of 7,000 rpm. Fuel is transferred by eight-port injectors with the big-block pumping through high-flow CNC-machined aluminum cylinder heads that contain symmetrical ports. Chevrolet has broken from the norm as most big-block engines are built and designed with variations in port shape from cylinder to cylinder. However, Chevy has crafted this engine with all eight of the ZZ632's intake ports containing the exact same length, volume, and layout. Likewise, all of the ZZ632's exhaust ports are identical. This symmetry guarantees individual cylinders all present comparable power.

"This is the biggest, baddest crate engine we've ever built. The ZZ632 sits at the top of our unparalleled crate engine lineup as the king of performance. It delivers incredible power, and it does it on pump gas," said Russ O'Blenes, director of the Performance and Racing Propulsion Team. 

Chevy Honors Longtime Engineer

Chevrolet RS-X Symmetrical Port cylinder heads gained their name from powertrain engineer Ron Sperry, who created them as one of his final achievements after over 50 years working on General Motors performance and racing engines. Sperry also submitted symmetrical ports to Chevy's iconic Small Block V8 with the Gen III LS1 engine that first launched with the debut of the 1997 Chevrolet Corvette.

Further Details of the Chevy Crate

The ZZ632's iron block shares a design with Chevrolet Performance's ZZ572 crate engines, but the castings are manufactured to support the heavy 632-cubic-inch displacement. The bores increased by 0.040 inch opposed to the 572-cubic-inch V8s, with most of the displacement gain coming from a stroke that's 0.375 inch longer! To provide allowance for that long stroke, designers changed both the block as well as the connecting rods. A framed rotating arrangement including four-bolt main caps guarantees power and stability. During construction, a single ZZ632 engine endured as many as 200 simulated dragstrip passes on a dyno. The ZZ632 will be first shown to the public at the 2021 SEMA show in Las Vegas next month in November 2021. Curious to drive and know the power of Chevrolet? Check with us for the newest Chevy vehicles ready to go to new owners! 

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