BMW automotive engine families listed as P60B40. Specifications below retain the source's separate family and variant labels.
Family specifications
BMW P60B40 engine
| Field | Reported value |
|---|---|
| Manufacturer | BMW M GmbH |
| Production | 2001–2005 |
| Configuration | Naturally aspirated 90° V8 |
| Displacement | 4.0 L; 243.9 cu in (3,997 cc) |
| Cylinder bore | 94 mm (3.70 in) |
| Piston stroke | 72 mm (2.83 in) |
| Cylinder block material | Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC 4 valves x cyl. |
| Compression ratio | 12.0:1 |
| Fuel system | Multi-port fuel injection |
| Management | BMW Motorsport |
| Fuel type | Gasoline |
| Oil system | Dry sump |
| Cooling system | Water-cooled |
| Power output | 650–700 bhp (485–522 kW; 659–710 PS) (M3 GTR race car; unrestricted) 444–500 bhp (331–373 kW; 450–507 PS) (M3 GTR race car; using 2x 30.4 mm (1.2 in) air intake restrictors ) 380 bhp (283 kW; 385 PS) (M3 GTR Straßen Version) |
| Torque output | 380–670 N⋅m (280–494 lb⋅ft) |
BMW automotive engine directory
Design, development and variant notes
The P60B40 is a naturally aspirated 4.0-litre racing V8 used by the E46 M3 GTR. The source describes a flat-plane crankshaft and dry-sump lubrication.
Wikipedia gives separate race and road-version ratings. Its engine index calls the fuel system direct injection while the individual P60 article describes multi-port injection; the sources disagree.
Data adapted from the cited Wikipedia revision by Wikipedia contributors under CC BY-SA 4.0. Production dates and fitments reflect that revision; verify the exact engine code, market and vehicle before applying a specification.
Sources
Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.
- Wikipedia: List of BMW engines. Wikipedia contributors; CC BY-SA 4.0. Source revision oldid 1382309748; accessed 2026-11-10.
- Wikipedia: BMW P60B40. Wikipedia contributors; CC BY-SA 4.0. Source revision oldid 1359673669; accessed 2026-11-10.
Further Wikipedia-sourced details
The following additional information is drawn from the cited Wikipedia revision by Wikipedia contributors, available under CC BY-SA 4.0. An open-ended date reflects the source snapshot, not confirmed current production or fitment.
Additional technical and variant notes
For the M3 GTR, the article lists 331 kW at 7,500 rpm for the race configuration and 283 kW for the road configuration. Its specification list gives a flat-plane crankshaft and firing order 1-8-3-6-4-5-2-7.
Further specifications from the cited article
Additional facts are adapted from this Wikipedia revision by Wikipedia contributors, under CC BY-SA 4.0.
The racing specification lists 480 N⋅m at 5,500 rpm; the M3 GTR road version has a separate lower power rating.