Sonny's 820 cid EFI Marine Engine - Engine Builder Magazine

Sonny’s 820 cid EFI Marine Engine

Engine of the Week is presented by

This 820 cubic inch marine engine is designed and built by Sonny’s Racing Engines for endurance boat applications. Using a billet aluminum block with 360-degree water jackets and 5.3-inch bore spacing hemispherical cylinder heads, find out why this engine is one of our Engine of the Week highlights. Engine of the Week is brought to you by: PennGrade https://www.penngrade.com/ Scat Crankshafts https://www.scatscrankshafts.com/ Elring https://www.elring.com/en/

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