B46 / B48

BMW B46 Engine Rebuilds & Performance Upgrades

The BMW B46 engine powers models like the 230i, 330i, 430i, X1, X3, and X4. Known for efficiency and smooth power delivery, the B46 becomes a true performer with the right internal upgrades and precision machining.

At Miami Engines, we specialize in BMW B46 engine rebuilds, forged internals, machining, and complete performance packages. Each engine is fully disassembled, cleaned, measured, and precision-assembled using OEM or forged components depending on your goals.

🔧 B46 Parts & Services We Offer

• Complete B46 engine rebuilds (stock & performance)

• Forged piston options (various compression ratios)

• Forged connecting rods

• Upgraded bearings (Calico coated)

• ARP head studs and fasteners

• Timing chain, seals & gasket replacements

• Precision machining & cylinder head service

• full blueprint assembly

Whether you’re restoring reliability or building for high horsepower, our B46 engine packages deliver exceptional strength and durability for BMW owners nationwide.