Section 4 - Specifications
Page 60
90-864195070 JUNE 2007
Models
4.3 MPI
5.0 MPI
350 MAG MPI
350 MAG MPI
Horizon
MX 6.2 MPI
MX 6.2 MPI
Horizon
Horsepower
220
260
300
320
Kilowatts
164
194
224
238
Number of cylinders
6
8
8
8
Displacement
4.3 L (262 cid)
5.0 L (305 cid)
5.7 L (350 cid)
6.2 L (377 cid)
Bore and Stroke
101.6 × 88.39 mm
(4.012 × 3.48 in.)
94.89 × 88.39 mm
(3.735 × 3.48 in.)
101.6 × 88.39 mm
(4.00 × 3.48 in.)
101.6 × 95.25 mm
(4.00 × 3.75 in.)
Compression ratio
9.2:1
9.4:1
9.4:1
9.0:1
Idle RPM in neutral
600
Specified WOT RPM range
4400‑4800
4600‑5000
4800‑5200
4800‑5200
Minimum oil pressure @ idle
41 kPa (6 psi)
Thermostat (seawater cooled
models)
71° C (160° F)
Thermostat (closed cooled
models)
77° C (170° F)
Timing @ idle
Not Adjustable
Firing order
1‑6‑5‑4‑3‑2
1‑8‑4‑3‑6‑5‑7‑2
Electrical system
12‑Volt Negative (‑) Ground
Alternator rating
65 amp
Recommended battery rating
(Non‑DTS models) (minimum)
750 CCA, 950 MCA, or 180 Ah
Recommended battery rating
(DTS models) (minimum)
800 CCA, 1000 MCA, or 190 Ah
Spark plug type
AC Platinum (AC 41‑993)
Spark plug gap
1.5 mm (0.060 in.)
Fluid Specifications (MPI)
Fluid Specifications
IMPORTANT: All capacities are approximate fluid measures.
Engine
IMPORTANT: It may be necessary to adjust oil levels depending on installation angle and
cooling systems (heat exchanger and fluid lines).
Always use the dipstick to determine the exact quantity of oil or fluid required.
4.3L MPI Models
Capacity
Fluid Type
Engine oil (with filter)
3.8 liters (4 U.S. qt.) Mercury/Quicksilver Synthetic Blend
MerCruiser Engine Oil 25W‑40
Seawater cooling system (winterization use
only)
20 liters (21 U.S. qt.) Propylene Glycol and Purified Water
Closed cooling system
19 liters (20 U.S. qt.)
Mercury Extended Life Coolant/
Antifreeze or Extended Life Ethylene
Glycol 5/100 Coolant/Antifreeze mixed
50/50 with Purified Water
Summary of Contents for 350 MAG MPI
Page 48: ...Section 2 Getting to Know Your Power Package Notes Page 40 90 864195070 JUNE 2007 ...
Page 70: ...Section 4 Specifications Notes Page 62 90 864195070 JUNE 2007 ...
Page 122: ...Section 5 Maintenance Notes Page 114 90 864195070 JUNE 2007 ...
Page 140: ...Section 6 Storage Notes Page 132 90 864195070 JUNE 2007 ...
Page 146: ...Section 7 Troubleshooting Notes Page 138 90 864195070 JUNE 2007 ...