4.0-Liter BMW S38B35 Engine

BMW S38B35 4.0-Liter Inline-Six Engine

This BMW S38B35 inline-six engine has been enlarged to 4.0 liters, offering a significant performance increase over the standard displacement while retaining the legendary architecture of BMW M’s most celebrated naturally aspirated powerplant. Built on the robust cast-iron S38 block and topped with an aluminum cylinder head, this engine is ideal for high-performance street builds or motorsport applications.  4.0-Liter BMW S38B35 Engine

The engine features a black-finished valve cover and is equipped with a billet dry-sump oil pan, enhancing oil control and reliability under high-G loads.

Engine Specifications & Features

• BMW S38B35 inline-six

• Expanded to 4.0-liter displacement

• Cast-iron engine block

• Aluminum cylinder head

• Dual overhead camshafts (DOHC)

• Black-finished valve cover

• Billet dry-sump oil pan

Overview

The BMW S38 is revered for its race-bred design, durability, and unmistakable character. This 4.0-liter configuration delivers increased torque and power while benefiting from dry-sump lubrication for improved performance in demanding driving conditions.

A compelling opportunity to acquire a highly developed BMW M engine, suitable for E28 M5, E24 M635CSi builds, or custom high-performance applications.