Mercury-Mercruiser 807447R02 LONG BLOCK ASSEMBLY Has been replaced

Remanufactured Pro‑Series Longblock. GM 8 Cyl., 6.3 Liter Gen+ 383 V8
(Left‑Hand Standard Rotation) with remanufactured 062 Vortec cylinder heads. 

This block is used to service the 383 Mag 4V Plus‑Series engines 865108R90 and 8M0061212 with standard rotation. This block is NOT equipped for applications using a CPS (Crank Position Sensor). This block has provisions for use with or without a mechanical fuel pump. Unique to this engine is a special camshaft profile, springs, screw‑in rocker studs, head casting, 1.6:1 roller rocker arms and 100 PSI oil pump.

Pro-Series Longblocks: As the original equipment manufacturer (OEM), Mercury has the benefit of engineering resources and the experience to remanufacture a true marine‑based engine. Every Pro‑Series Longblock is completely remanufactured with components suitable for marine applications.

With a 1‑Year Factory Limited Warranty, Pro‑Series Longblocks from Mercury Remanufacturing can be installed with complete confidence. Extra warranty (Major Assembly Protection) is also available from Mercury Product Protection! Ask us about this. 

NOTE: When replacing an inboard Longblock, it may be necessary to transfer the original Aluminum Oil Pan to the replacement block for additional
corrosion protection and to ensure a proper dipstick location.

Gasket Set not included with Pro‑Series Longblocks

Core/Container Deposit may apply from Mercury Marine. Add to your shopping cart to view core & container deposit charges.