315 HP @ 5200 RPM – Standard / Left‑Hand rotation. Brand New 350 cubic inch FULLY dressed marine engine with Velvet Drive 71c assembly. Engine features: New Quicksilver 4.00″ bore V8 iron block, new nodular iron 3.48″ stroke crankshaft, Multi‑Port Fuel Injection using Cool Fuel 3, Dry Joint Ski Exhaust facing the flywheel, 75mm TBU, 2‑piece aluminum intake manifold with iron base, new fuel injector & rail assembly, new sensors, new HVS assembly, serpentine belt accessory drive system, high‑lift billet steel roller camshaft, raw water cooling, hand removeable blue drain plugs, new Quicksilver high flow iron cylinder heads with screw‑in rocker studs, 9.4:1 pistons, and 1.5:1 rocker arms. Includes marine grade: starter, 65 Amp alternator, oil pan, sea pump, flame arrestor, circulating water pump, spark plugs and wires. The 350 MPI Tow uses ECM555 with Engine
Guardian and is SmartCraft ready using a 14‑pin harness. Custom Blue Flame hand air brushed engine cover included. New Velvet Drive 71c 1.00:1 gear ratio iron housing transmission with mounts, cooler, shift bracket, hoses, fluid filled, and 3″ output flange.
3‑Years of Limited Factory Warranty. Runs on 87 Octane Fuel.
315 HP New PLUS SERIES Engine and Transmission Inline Assembly
Used to replace all models of MerCruiser Tow Sport inline engines built between 1990‑2015. Any adaptation of this engine into a boat not using a MerCruiser engine may require minor changes to the boat’s stringer and fuel system to accommodate this engine. Do not modify this engine’s mounts nor fuel system to adapt into a boat. S‑pipes sold separately.
350 Tow Sport
Repower. The why, when, how.First off, you want to keep your boat. And why not? You love it. And it’s rigged just how you want it. Now on to the engine. Maybe it has lost a little of its power over the years. A little bit of its throttle. That happens. But guess what? You can get it back. All of it. Back to the original specs, the original performance, the original thrills. Maybe even with a few engineering upgrades. That’s how good QUICKSILVER is. Your boat. Your engine. Back to the way it was. Or better. And for a fraction of the cost of a new boat.We repower it all.
No company in the world has the breadth and depth of repowering options available. And from full ‘plug and play’ engine swaps to just core base engine replacements, we can give you whatever level of support you need. Be true. Trust Quicksilver.Engine? Check. Ready for takeoff!Fully Inspected – 100% inspection before shipment: – Hot tested – Pressure checked – Compression checked – UV light and dye leak checkThink of it as a full organ transplantThink you’ll just be getting an old engine that’s simply checked over and repainted? Well think again! We replace just about everything. Pistons, connecting rods, camshafts, oil pump, water pump, valves and springs, oil pump, and head gaskets, are all new. And that’s not even the full list.Now let’s get that old beauty back in shape
Dealers everywhere around the world sell and service Quicksilver marine engines. Visit your favorite dealer today to learn more about repowering your boat!