AIRMAX GM 6.6L L5P Duramax
Call sales for more information or questions at +1 (352) 401-9070
The heart of the Airmaxx is a current production GM 6.6L L5P Duramax engine. Marine Power chose this platform because of it’s proven performance with reliability. This is the first marinized Duramax that has GM support, and utilizes a GM engine controller. This package is so unique it created a segment in the market nobody knew existed.
In Stock
The heart of the Airmaxx is a current production GM 6.6L L5P Duramax engine. Marine Power chose this platform because of it’s proven performance with reliability. This is the first marinized Duramax that has GM support, and utilizes a GM engine controller. This package is so unique it created a segment in the market nobody knew existed.
The Airmaxx package includes a 7″ Medallion Instruments display, main engine harness, GM foot throttle, K&N air filter, and fuel lift pump.
STATE OF THE ART TECHNOLOGIES
Electronically Controlled, Variable-Geometry Turbocharger
- Variable vane mechanism allows greater exhaust temperature capability, enabling the engine to achieve higher power at lower cylinder pressure.
Cold-Start System
- Fuel injection system and combustion chamber shape helps optimize cold weather performance
- Enhanced ceramic glow plugs and automatic temperature compensation assist with quicker heat ups and reliable starting down to -40 deg.
Robust Crank and Valvetrain Designs
- Updated crankshaft with induction hardened main bearing journals and high pressure rolled fillets for strength and longevity.
- Pistons with refined aluminum material along with an oil cooling gallery help maximize performance and robustness vs previous Duramax® 6.6L engines.
Additional Features
- Strong cast iron cylinder block and aluminum cylinder heads.
- Strong micro alloy rotating and reciprocating assembly.
- Optimized oil flow and coolant flow capacity.
- Segment first re melt piston bowl rim.
- Advanced solenoid fuel system.
- GM designed electronic controls.
- Full length damped steel oil pan that contributes to quietness.
- B20 biodiesel compatibility
ENGINE SPECIFICATIONS
TYPE:
DISPLACEMENT:
COMPRESSION RATIO:
VALVES PER CYLINDER:
BORE X STROKE:
FUEL SYSTEM:
HORSE POWER:
TORQUE:
MAXIMUM POWERED
SPEED: BLOCK:
CYLINDER HEAD:
INTAKE MANIFOLD:
EXHAUST MANIFOLD:
MAIN BEARING CAPS:
CRANKSHAFT:
CAMSHAFT:
CONNECTING ROD:
AIR FILTRATION:
EXHAUST OUTLET:
6.6L V-8 TURBO DIESEL
6604 CC (403 CU.IN.)
16.0:1
FOUR
103 X 99MM
DI WITH HIGH-PRESSURE COMMON RAIL
450 HP AT 3300 RPM
1215NM (897 FT.LB.) AT 1400 RPM
3450 RPM
CAST IRON
CAST ALUMINUM
CAST ALUMINUM
CAST NODULAR IRON
CAST NODULAR IRON
FORGED STEEL
STEEL
PM IRON
K&N AIR FILTER
4″
975 LBS








