General Specifications
HP / kW
520 HP / 387.4 kW
Displacement
7440 cc (454.0 cu in.)
Cylinders
8 (V8 (90°))
WOT RPM
5400 - 6000
Weight
465 kg / 1025 lbs
Drive & Lower Unit
Gear Ratio
1.56
Shaft Length
N/A (Inboard/Drive)
Electrical System
Alternator Output 1197 Watts
Starting System Electric
Technical Maintenance Toolkit
Verified service specifications for the Ilmor MV8 520 (High Performance) (2024)
Lubrication
Engine Oil
15W-50 Synthetic
Oil Capacity 7.6 Liters
Gearcase Lube 1500 ml
Ignition System
Spark Plug
ACDelco 41-110
Firing Order 1-2-3-4
Performance Specs
Idle RPM 700 ± 50
WOT Range 5400-6000
Alternator 1197W
Standard Maintenance Intervals
20H Break-in Service
100H Annual Tune-up
300H Water Pump & Seals
Identification
The serial number for the Ilmor MV8 520 (High Performance) is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Ilmor MV8 520 (High Performance):
Model Evolution
History of the Ilmor 520HP series over the years:
Standalone production year.
Category Discovery
Reference Data
Information compiled from Ilmor Marine factory service manuals and original sales literature published in 2024.