Sonny's 820 cu. in. Hemispherical Headed EFI Marine Engine

Sonny's now offers for 2020,  a 5.3 Bore Space Hemispherical Headed EFI Marine Engine. 5.045 Bore X 5.125 Stroke,  The 820 Cu. In. Engine makes over 1450 HP Naturally Aspirated, and over 1180 ft. lbs torque @ 5900 RPM. Works great for poker runs, recreational boating.( Check out the water flow on the block pictured above!!) Naturally Aspirated, No Power Adders ! 114,600.00

** Sonny's also offers a 2020  stage II Version which uses a billet intake manifold, front mounted throttle bodies, Billet oil pan with 5 stage billet oil pump, makes 1650 HP on 110 octane racing fuel, and over 1250 ft. lbs torque @5800 RPM Naturally Aspirated!! No Power Adders!  Only  $ 3,300.00 additional over standard 820 cu.in. engine