Uploaded September 2025 | Updated September 2026, 1 hour ago

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Designed and engineered to make big power, the Chevrolet ZZ632/1000 is our biggest, baddest Big-Block engine. Roaring in at 1,004 horsepower and 876 lb.-ft of torque on 93- octane gas, this 632-cu. in. heavyweight is also our most powerful engine.

With the tall-deck Sportsman Bowtie at its core, an all-forged roller assembly, hydraulic roller camshaft, high-flow spread-port cylinder heads derived from Pro Stock racing technology and EFI induction system provide precise fuel control to enable stunning output. Check out the highlights.

Go to chevrolet.com/performance-parts/crate-engines/big-block-engines/632-engine
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