Stage 1 B58 High Performance Engine (B30B 2WD) | BMW M240i/M340i/M440i/Z4M40i
Vehicle Fitment & Product Details
- Type Engine
- Make BMW
- Model(s) M240i, M340i, M440i, and Z4 M40i
- Vehicle Year(s) 2020, 2021, 2022, 2023, and 2024
- Chassis F22, F23, G20, G22, and G29
- Body Style(s) Roadster, Coupe, Convertible, and Sedan
- Part Number CBB58-6005
- Fits Engines B58
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The CarBahn engine is both stronger and less expensive than the BMW OEM factory engine. The B58 CarBahn engine is designed to improve the strength of your engine if you are tuning your car. Connecting rods are replaced with Carrillo forged racing rods. Pistons are CP forged racing pistons. The engine also comes with high performance valve springs for increased boost. The engine is a complete overhaul with blue printing and balancing. This engine is designed for an increase in torque of 50% over stock.
Steve Dinan’s engine shop has been building racing engines for 43 years. Those engines have won many championships including three prototype racing championships including 2 overall wins in the 24hrs of Daytona in 2011-2013. You will not find a higher quality engine. All engines are backed with a two-year warranty.
Engine core acceptance parameters
Must be complete core (factory engine, from oil pan to valve cover)
- Block must have no:
- Holes or cracks in casting
- Holes or crack in covers
- Bore damage that cannot be honed out
- Thrust surface damage
- Journal surfaces damage
- Bolt hole damage that can’t be repaired
- Heads must have no:
- Holes or cracks in casting
- Holes or crack in covers
- Thrust surface damage
- Journal surfaces damage
- Bolt hole damage that can’t be repaired
- Additional repair charges could apply for damaged items that are not normally changed during an overhaul and cannot be repaired or serviced
- Valves
- Crankshafts
- Camshafts
- Guides
- ValveTronic mechanism
- Vanos mechanism
https://www.youtube.com/watch?v=WSHusoVQm8o