CHEVROLET PERFORMANCE UNVEILS ITS LARGEST, MOST POWERFUL CRATE ENGINE EVER

Chevrolet Performance has introduced the ZZ632/1000* crate engine — the largest and most powerful crate engine in the brand’s history. The naturally aspirated 632-cubic-inch V-8 produces 1,004 horsepower and 876 lb-ft of torque.

The Big Block V-8 reaches peak power at 6,600 rpm and revs to a recommended maximum of 7,000 rpm. Fuel is delivered by eight port injectors with the engine breathing through CNC-machined high-flow aluminum cylinder heads featuring symmetrical ports. While Big Blocks have traditionally been designed with variations in port shape from cylinder to cylinder, all eight intake ports of the ZZ632 have the same length, volume and layout. Similarly, all of the ZZ632’s exhaust ports are identical. The ZZ632’s iron block shares a mold with Chevrolet Performance’s ZZ572 crate engines, but the castings are machined to accommodate the massive 632-cubic-inch displacement. Most of the displacement gain comes from a stroke that’s 0.375 inch longer. To provide clearance for that long stroke, engineers modified both the block and the connecting rods.

Chevrolet Performance dealers will begin deliveries in early 2022.

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