Introducing the Marine Power LT4 AirPac engine. A 620 Horsepower Supercharged Direct Injected engine designed and calibrated specifically for Airboat applications.

The New 6.2L LT4 AirPac Engine features the latest technology from both Marine Power and General Motors. We start off with a new marine Industrial base engine that features state of the art direct fuel injection. Controlled by a MEFI 7 ECM the Direct Injection allows the engine to make more horsepower while burning less fuel and achieving greater combustion efficiency than engines with conventional port injection. That along with the Marine Power self contained high pressure fuel system and other industry leading products makes this fresh water cooled engine the perfect option for a new boat build or your repower needs.

A62LT4-right


Displacement 6162cc (376 cl)
Engine Orientation Longitudinal
Compression Ratio 10.0:1
Valve Configuration Overhead Valves (2 valves per cylinder)
Firing Order 1 – 8 – 7 – 2 – 6 – 5 – 4 – 3
Bore x Stroke 103.25 x 92 mm
Fuel System DI
Fuel Type Premium Required
Maximum Engine Speed 6600 rpm
Connecting Rods Forged Powder Metal
Horsepower 650 hp (485 kW) @ 6400 rpm SAE certified
Torque 650 lb-ft (861 Nm) @ 3600 rpm SAE certified
Block Cast Aluminum
Cylinder Head Cast Aluminum
Intake Manifold Cast Aluminum Supercharger
Main Bearing Caps Nodular Iron
Crankshaft Forged Steel
Camshaft Billet SteelSteel
Warranty
3 Year Limited