BMW M3 E30 S14 Engine

Experience the heart and soul of BMW Motorsport with the M3 E30 S14 Engine, a 2.3L (later 2.5L in Evolution models) high-revving inline-four that established the M3 as a performance icon. Known for its precision engineering, exceptional throttle response, and motorsport DNA, the S14 delivers raw, exhilarating power that thrills enthusiasts and collectors alike.

Designed for the original E30 M3, this engine offers legendary performance both on the street and the track. With its robust internals, lightweight construction, and high-revving capability, the S14 is capable of delivering sustained performance while maintaining excellent reliability. It’s the perfect engine for restorations, engine swaps, or building a track-ready classic BMW.

The S14 engine includes a racing-inspired camshaft profile, individual throttle bodies (in Evolution versions), and reinforced internals to handle spirited driving or competition use. Every detail reflects BMW’s commitment to performance and durability, making the S14 an ideal choice for enthusiasts who demand authenticity, power, and the legendary M3 driving experience.

⭐ Key Features

• 2.3L / 2.5L Inline-Four High-Revving Engine (S14)

• Originally built for BMW E30 M3

• Exceptional throttle response and high-revving performance

• Motorsport-inspired engineering with reinforced internals

• Ideal for restorations, swaps, or performance builds

• Maintains classic M3 driving dynamics and legacy

• Lightweight design for optimal performance and reliability

⭐ Why Choose the S14?

The BMW S14 engine is a true motorsport legend, offering unparalleled performance, precision, and authenticity. It ensures that your E30 M3 delivers the driving experience that made it a classic icon while providing long-lasting reliability and tunability for performance enthusiasts.