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The MerCruiser Black Scorpion 330 is a performance-oriented tow-sports inboard engine commonly used in ski/wake boats. It is not the same calibration as the standard 350 MAG.
Key specs:
* Engine: GM-based 5.7L / 350 CID V8
* Power: 330 HP / 246 kW
* Fuel system: Multi-Point Fuel Injection (MPI)
* WOT range: 4,800–5,200 RPM
* Compression: 9.4:1
* Bore × stroke: 4.00 × 3.48 in.
* Idle: approximately 650 RPM
* Electrical: 12V negative ground
* Alternator: 65 amp on the 2007-era specification
* Firing order: 1-8-4-3-6-5-7-2
* Application: Direct-drive/V-drive tow-sports boats
* Approx. engine weight: 821 lb (373 kg) in Mercury’s repower specifications.
Black Scorpion vs. 350 MAG
The important distinction is output. Mercury’s application guide lists the 5.7 Black Scorpion at 330 HP, compared with 315 HP for the 5.7L 350 MAG MPI of the same period. The Black Scorpion also has a higher specified WOT range of 4,800–5,200 RPM.
