4TN2235WH - New Mercury Racing 520 HP 8.6L CC Engine Only. Please see specs below. Great replacement engine for 502 or 496! Please use the Contact Us tab for questions. These are the latest models, in stock now!
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New Mercury 520 Racing Engine. Engine only or complete packages with ITS Transom, Bravo XR and XR Sportmaster lowers available. Please contact us for more information
Perfect upgrade for Big Block 496 (8.1), 502 (8.2), 454 & 454 MAG's and 7.4L Mercruisers. Easy swap as this engine uses the same pedestal mounts as all the Mercruiser black engines.
Full 2 Year limited factory warranty for recreational boating! 3 extra years available.
4800-5200 Full Throttle RPM
8.7:1 Compression Ratio
CYLINDERS / ENGINE CONFIGURATION: V8
FUEL REQUIREMENT: 87 Octane Minimum (R+M/2), (91 RON) Global
FUEL SYSTEM: Sequential Fuel Injection
BORE & STROKE: 4.56 x 4.00 IN/115.8 x 101.6 MM
ALTERNATOR (AMP): 65 AMP
COMPATIBLE DRIVES: Bravo One XR, Bravo One XR Sport, Bravo One XR Sport Master (Std. & Short), Bravo Three XR; (Integrated Transom System Optional)
LENGTH (IN): FROM BACK OF BLOCK: 34.2 IN
WIDTH (IN): 33.8 IN
HEIGHT (IN): 24.2 IN
WEIGHT (LBS): 1218 LBS