Mercruiser 8.1L Marine Engine Specifications
Models |
496 MAG HO |
496 MAG |
Propshaft Horsepower |
4251 |
3751 |
Propshaft Kilowatts |
3171 |
2801 |
Displacement |
496 cid (8.1 l) |
|
Maximum rpm @ WOT2 |
4600-5000 rpm |
4400-4800 rpm |
Idle rpm in NEUTRAL2 |
650 rpm |
|
Oil Pressure @ 2000 rpm |
60 psi (414 kPa) |
|
Oil Pressure @ Idle |
30 psi (207 kPa) |
|
Thermostat |
160o F (71o C) |
|
Firing Order |
1-8-7-2-6-5-4-3 |
|
Electrical System |
12-Volt Negative (-) Ground |
|
Alternator Rating – Hot Operating Amps |
65 Amps |
|
Alternator Rating – Cold Operating Amps |
72 Amps |
|
Recommended Battery
Rating (Minimum) |
650 cca/825 mca/150 Ah |
1 Power Rated in Accordance with NMMA (National Marine Manufactures’ Association) rating Procedures.
2 Measured using an accurate service tachometer with engine at normal operating temperature.