CarBahn S85 Engines
The S85 is one of BMW M’s most iconic engines, and CarBahn offers purpose-built packages for customers looking to preserve that character while stepping into a more serious performance build. Whether you are planning a stronger replacement, a premium street engine, or a larger-displacement V10 built for elevated power goals, we will help spec the right path for your project.
5.2L
Ideal for customers who want to retain the core S85 character while upgrading overall durability, rebuild quality, and confidence for spirited street or dual-purpose use.
- OEM-displacement V10 performance engine path
- Great for premium street and dual-purpose builds
- Strong option for refresh, replacement, or upgraded rebuilds
5.8L
Built for customers chasing a more extreme S85 package with added displacement, stronger torque delivery, and a higher-performance foundation for serious builds.
- Stroker-based high performance V10 engine path
- More displacement and stronger midrange response
- Best fit for aggressive street or track-oriented applications
Fill out the form with your vehicle, build goals, and intended use. We will help guide you toward the right S85 engine package based on displacement, performance targets, supporting mods, and how the car will actually be used.
Talk directly with a CarBahn engine specialist about your S85 build.
Tell Us About Your S85 Build
Submit your build goals and our team will help point you toward the right 5.2L or 5.8L engine package.
- Your vehicle year and chassis
- Whether you want a 5.2L or 5.8L setup
- Street, dual-purpose, or track use
- Power goals and supporting modifications
- Whether this is a fresh build, replacement, or consultation
to speak directly with an engine specialist.
Collection: S85 Engine
Explore CarBahn's S85 engines, including custom replacements, rebuilds, and cams engineered by Steve Dinan. Our engines and components provide outstanding performance and reliability, offering a high-quality alternative to OEM with superior power and efficiency at a competitive price.
