Mercury-Mercruiser 8M0124033 Replaced by 8M0163302

Quicksilver Remanufactured Pro-Series Longblock 
GM 8 Cyl., 5.7 Liter Gen+ 350 V‑8 (Left‑Hand Standard Rotation) with remanufactured Vortec cylinder heads.

Replaces 2005‑2015 MerCruiser 350 MAG MPI Multi‑Port Fuel Injected sterndrive & inboard marine engines. This block has provisions for a CPS (Crank Position Sensor). There are no provisions for a mechanical fuel pump. It uses a proprietary MerCruiser roller camshaft profile used during the years listed for MerCruiser applications using dual knock sensors. (Serial numbers# 0W310000 and up) 

International Pro-Series Longblock Info:

As an OEM, Quicksilver has the benefit of engineering resources and the experience to remanufacture, deliver, and support a true marine‑based engine for global markets. International Series longblocks are completely remanufactured with components suitable for marine applications used globally. International Series longblocks deliver value that saves time and money when considering the total cost of the job. International Series longblocks include:

All tin ware – oil pan, valve covers, front cover, and side covers as necessary
• A genuine marine circulating water pump
• New stainless steel marine valves & springs
• New high flow oil pump
• New lifters and camshaft for flat tappet engine types
• Brass core plugs, marine grade gaskets and seals
• New O.S. pistons and rings
• Some models are equipped with 100% new heads – see individual product details
• Factory certified with latest technology computer controlled SIM tester
• Factory hot oil flush after running SIM test
• Engines are shipped without oil due to international safe shipping guidelines
• No core/container deposits of any kind
• 3‑Year Promotional Limited Warranty on every International Series longblock sold in North America

Some things not included that will need to be transferred from the previous engine or purchased separately:
• Flywheel
• Harmonic balancer
• Gasket set
• Quicksilver Synthetic Blend 25W‑40 4‑Stroke Oil