N74B66
Production History
- Ghost SWB (RR1) - 2009-2020
- Ghost Extended Wheelbase (RR1) - 2009-2020
- Ghost Series II (facelift) - 2014-2020
- Ghost Black Badge (early) - 2016-2020
Known Failures
- Timing chain tensioner wear - documented failure between 60k-100k miles on N74B66 units.
- Turbo wastegate sticking - actuator wear causes boost loss and rattling noises.
- High-pressure fuel pump degradation - reduced pressure leads to rough running and misfires.
Specs
Petrol · 6.6L · 563-593hp · Twin-Turbocharged
Replacement Cost
Typical UK rebuilt engine: £9,850-£24,500 (supply only)



