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Chevy Debuts a 1000 hp 10.3 L Big-Block V8

Published in engineswapdepot.com

Chevy announced their new ZZ632/1000 V8 crate motor. The naturally aspirated 632 ci (10.348 L) big-block makes 1004 horsepower at 6,600 rpm and 876 lb-ft of torque at 5,600 rpm on 93 octane fuel. The motor features a tall-deck Bowtie Sportsman cast iron block (4.60″ bore, 4.75″ stroke), RS-X CNC-machined aluminum heads with symmetrical ports, forged steel crank and rods, forged 2618 aluminum pistons, billet hydraulic roller camshaft, and 86-lb/hr injectors. The engine will be on display at SEMA 2021 and Chevy Performance dealers will begin shipping them in early-2022.

Chevy 632 ci ZZ632/1000 V8 crate motor dyno sheet

Source: Chevrolet media via Hemmings

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