BMW S54B32 Engine and 6-Speed Gearbox

The S54B32 is widely considered the peak of BMW’s naturally aspirated inline-six development. In 2026, it remains the gold standard for swaps into E30s, E36s, and Z3s, while acting as the essential heart for E46 M3 restorations.

Pairing it with the Getrag 420G 6-speed creates the definitive “analogue” driving experience.

Listing Details

• BMW S54B32 Engine
• 3.2-Liter Inline-Six
• Iron Block w/Aluminum Cylinder Head
• Dual Overhead Camshafts
• Double-VANOS Variable Valve Timing
• Ancillary Equipment
• Getrag Six-Speed Manual Gearbox

Technical Profile

• Engine: 3.2-Liter Inline-Six, Individual Throttle Bodies (ITBs), Double VANOS.

• Output: 333–343 hp (depending on US/EU spec) / 262 lb-ft torque.

• Redline: 8,000 RPM (piston speeds that rivaled F1 engines of the era).

• Transmission: Getrag 420G 6-Speed Manual (stout, but complex to service).