Get Up Close And Personal With Chevy's 1,004-HP Crate Engine

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The most powerful crate motor gets a better introduction.

In late October, Chevrolet blindsided us with a brand-new 10-liter crate engine. Put simply, it is the most powerful crate engine you can buy, beating the Hellephant by a full four horsepower. Hey, every single horse counts when it comes to outgunning the competition.

Chevrolet loses the name game, as its crate motor is known as the ZZ632/1000, which stands for 632 cubic-inch V8 producing 1000 (1004, actually) horsepower. But apart from a post on Instagram showing a pre-production mule mounted on an engine dyno, we haven't seen much else. Well, apart from the Hoonigan crew receiving another pre-production mule to put in a Z28 Camaro. But fortunately, SEMA made it obligatory for GM to show us more.

Chevrolet Performance/YouTube
Chevrolet Performance/YouTube
Chevrolet Performance/YouTube

Along with a display at the show, we now also have access to the above video telling us a bit more about the engine. Along with a scandalous horsepower figure, the engine generates 876 lb-ft of torque on 93 octane pump gas. As you'd expect, the block is cast iron, which is good news for those looking to push the limits with insane boost levels.

It has Pro Stock-inspired symmetrical port RS-X cylinder heads, electronic fuel injection, a forged rotating assembly, and advanced ignition technology. Again, these are more clues to show that the engine will be reliable despite its obscene output.

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The RS-X cylinder head was named after Ron Sperry, who designed the system as a swansong project after spending 50 years working for Chevy.

What we love most about this engine is that it's naturally aspirated, unlike the Hellephant or Ford's Godzilla engine. This free-breathing brute produces peak power at 6,600 rpm and redlines at 7,000 rpm. That's quite something for such a large engine.

The first batch of engines is expected to arrive at Chevrolet Performance dealers in early 2022, but in the meantime, you can see the Hoonigan crew start their Camaro up for the first time before taking it for a short, tame spin around the block.

Hoonigan/YouTube
Hoonigan/YouTube
Hoonigan/YouTube

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