BMW M8 Engine Replacement Parts

The BMW M8 (F91/F92/F93 generation, produced from 2019 onwards) uses the S63 4.4-litre twin-turbocharged V8 throughout its production run, so the engine code is your most reliable guide to compatibility rather than the model year alone. If the engine code on both vehicles matches, the mechanical block is broadly the same unit, but ancillary and mounting changes can occur mid-production without a clear public cutoff, so confirm those details with the breaker against your specific registration. ECU pairing and immobiliser coding are also vehicle-specific and will need professional attention after any engine swap — your breaker can advise on what they supply.

Both the 2020 and 2022 M8 sit within the same F91/F92/F93 generation, all using the S63 4.4-litre twin-turbo V8, so on paper the core engine should be compatible. However, minor ancillary or mounting revisions can happen within a generation without a formal facelift announcement, so check the full engine code from your V5 or a VIN check and confirm directly with the breaker that the exact specification matches your registration. Never assume fitment purely on year — the engine code is the single most useful detail you can give a breaker.

The BMW M8 Competition and standard M8 both use the S63 4.4-litre twin-turbo V8, but the Competition variant is tuned to a higher output (617 hp versus 591 hp in the standard car), which can involve differences in engine management, software calibration, and potentially internal componentry. Trim level itself does not change the fundamental block architecture, but these power output differences mean you should verify the exact engine code and specification with the breaker before purchasing, as swapping a Competition unit into a standard car or vice versa has ECU and immobiliser implications that need professional handling. State your registration clearly to the breaker so they can match the correct specification.

The M8 Gran Coupe (F93) and M8 Coupe (F92) both use the same S63 4.4-litre twin-turbo V8 engine family, so body style alone does not determine engine fitment. What matters is that the engine codes match and the fuel type and gearbox type are the same — all M8 variants are petrol with an eight-speed automatic, which keeps things consistent. Confirm ancillary and mounting compatibility with the breaker against both registrations, as these details can vary independently of body style.

Your engine code will be listed on your V5C logbook or can be retrieved via a VIN check through a reputable online service or your local BMW dealer. For the M8, you are looking for the S63 designation, but the full suffix — such as S63B44T4 — is what a breaker needs to confirm an exact match. Providing this code rather than just the model year and badge gives the breaker the most accurate information and significantly reduces the risk of ordering an incompatible unit.

Both the F90 M5 and the F91/F92/F93 M8 use variants of the S63 4.4-litre twin-turbo V8 family, but they are not identical — the M8 uses a higher-output version and the two cars have different engine management calibrations and ancillary setups. Cross-model fitment of this kind sits firmly in territory where you must confirm compatibility with the breaker against both your registration and the donor vehicle's registration, as mounting, cooling, and ECU pairing differences could all present problems. A breaker experienced with BMW performance cars is your best source of accurate guidance here.