BUILD YOUR
CARBAHN S63 ENGINE
Choose your M5 chassis, engine configuration and parts kit. Add the hardware, machining and assembly services your build needs.
S2 / FORGED INTERNALS
Select your M5
Choose your chassis, then confirm the block version for an F90 build.
Confirm your F90 block version
Which block do I have?
The F90 kits are separated by cylinder-bore construction: the earlier Alusil configuration and the later coated-bore configuration. Choose the kit and machining services that match the block being rebuilt.
The 2019-and-earlier / 2020+ labels are year guidance. Confirm the actual block with your engine builder, particularly for transition-year cars or replacement engines.
Not sure? Contact CarBahn with your VIN, build date and any engine replacement information before ordering.
Choose your performance target
Start with how the vehicle will be used. Package contents update in the next step.
Select your parts package
Choose the forged rotating assembly or the expanded complete parts kit.
Complete the build
Add the preparation, assembly and support parts appropriate for your engine.
Supporting parts
Machining & assembly services
Select individual services as needed. Assembly labor is separate from the parts kit.