Crate News! Chevy unveils massive 1,004-hp 10.35L crate V8 engine

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If your Uncle Walt is fond of saying “there’s no replacement for displacement” every time someone mentions turbo- or supercharging, well, he’ll have a new example to trot out and support his argument.

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Just in time for SEMA, Chevy has unleashed a 10.35L big-block V8 engine capable of making over 1,000 horsepower right out of the box. For all you old-school racers out there, that’s 632 burly cubic inches.

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But wait, there’s more! GM asserts this engine will produce those types of numbers on pump gas , not some wild fuel concoction known only to racers who’ve communicated with the ghost of Dale Earnhardt via an oil-stained Ouija board.

Chevy’s dyno chart shows about 600 of the 786 lb-ft of peak twist coming online at just 3,000 rpm, cresting a few revs later at 5,600 rpm. That’s a pretty flat torque curve for any engine, let alone one displacing more than 10 litres. All the horses show up for duty just 400 rpm shy of the 7,000-rpm red-line.

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That’s a traditional iron block, if you’re wondering, one which is shared with the now admittedly pedestrian ZZ572 line of crate engines.

To achieve the sky-high displacement figure, Chevy punched it out in terms of both bore and stroke. Connecting rods and crankshaft are steel, though the pistons are aluminum. And just in case it needed to be said, this mill is intended for competition use only, since it will likely smash all emissions rules into tiny smithereens.

This monster will show up in person at this year’s SEMA show in Vegas and should be in customer’s hands – if not their cars – by early in the 2022 calendar year. Bring yer earplugs.