N63

BMW N63 Engine Rebuilds & Performance Upgrades

The BMW N63 engine powers models like the 550i, 650i, 750i, 850i, X5, and X6 — delivering huge power but also known for common issues such as oil consumption, valve stem seal failure, timing chain stretch, and overheating.

At Miami Engines, we specialize in complete BMW N63 engine rebuilds, machining, and high-performance internal upgrades. Each engine is fully disassembled, cleaned, machined, and blueprint-assembled to exceed OEM reliability and handle more power.

🔧 N63 Parts & Services We Offer

• Complete N63 engine rebuilds (stock or performance)

• Valve stem seal replacement solutions

• Upgraded rod bearings

• Timing chain, guides, and tensioners

• Forged pistons & upgraded connecting rods

• ARP head studs & internal hardware

• Cylinder head machining and resurfacing

• Oil pump, seals, and gasket replacements

• Full machine shop services in-house

Whether you're restoring reliability or preparing for a high-horsepower build, our N63-specific engine packages deliver unmatched durability and performance for BMW owners across the USA.