With the 2021 SEMA Show well underway, the event’s most interesting products and vehicle builds are already making a splash with fans. Chief among this year’s SEMA stars is Chevrolet’s new ZZ632 V-8 crate engine, which as its name suggests displaces a massive 632 cubic-inches. For those unfamiliar with freedom units, that makes this 10.3-liter big block the largest crate engine ever produced by General Motors. Thanks to the team at Chevrolet Performance, we now have a chance to hear the monster motor hit the dyno.
The ZZ632 V-8 is an old-school engine, without any modern hybridization or forced induction to bolster power output. That isn’t a problem, as GM states that the engine will push out figures of 1004 hp and 876 lb-ft of torque on pump gas. Perhaps equally as impressive is the fact that the iron-block big boy can also rev, with a redline set all the way up at 7000 rpm.
For the full story and video, check out this article from Road & Track.