maXpeedingrods Connecting Rods for BMW Big 6 engine M30 M30B35 L6 with 3/8″ ARP 2000 Bolts

🔧 Built for Boost, Abuse, and Bad Decisions

The M30 is famous for taking abuse—but stock rods still have limits. Especially when you start cranking up boost or revving like you’re trying to impress strangers at Cars & Coffee.

These rods fix that problem:

• H-Beam Design

  • Increased strength under compression and tensile loads

  • Ideal for turbo and high-RPM applications

• Forged 4340 Steel Construction

  • Built to handle serious horsepower and torque

  • مقاust under extreme cylinder pressures

• 3/8” ARP 2000 Rod Bolts

  • High clamp load for reliability under boost

  • Essential for high-performance builds

Fit for BMW M30B35 Big 6 engine M30 L6

🚗 Fitment Compatibility

Designed specifically for BMW’s classic inline-six:

• BMW M30 Engines

• M30B35 3.5L Inline-6

Commonly found in:

• BMW E28 5-Series

• BMW E24 6-Series

• BMW E34 5-Series

• BMW E23 7-Series

Perfect for restorations, performance builds, and turbo conversions.

Material: Forged 4340 aircraft chrome moly quality steel for racing

⚙️ Ideal Use Cases

These rods are built for people who think “stock power” is just a starting point:

• Turbocharged M30 builds

• High-horsepower street or drag builds

• Engine rebuilds with performance goals

• Classic BMW restorations with modern power upgrades

Realistic power capability:
👉 400–700+ HP (with proper supporting mods and tuning)

Yes, the M30 can absolutely get rowdy—and these rods help it survive.

🔧 M30B35 (The One You Actually Care About)

• Years: ~1988 – 1993 (sometimes into 1994 depending on market)

• Displacement: 3.5L inline-6

• Most common in:

  • BMW 535i (E28, E34)

  • BMW 735i (E32)

  • BMW 635CSi (late E24)

Dimensions: Center to center length: 135mm/5.315″ Big end diameter: 52mm/2.047″ Small end diameter: 22mm/0.866″ Big end width: 23.876mm/0.94″ Small end width: 23.88mm/0.94″

⚠️ Reality Check (Because Forums Won’t Tell You This)

These are budget forged rods, not boutique race parts.

So do it right:

• Check clearances and measurements

• Balance your rotating assembly

• Use quality bearings

• Get proper machine work

Otherwise, that “bulletproof” M30 becomes a very expensive paperweight.

Package Contents: 6 Pieces of H-Beam Connecting Rods; 12 Pieces of 3/8″ ARP 2000 Bolts (Extra cost for upgrading to ARP L19 bolts)
Note: Please confirm the dimension of the rods matches your original before purchase, which is the best way to check the fitment

🔥 Why Choose maXpeedingrods for M30?

• Affordable forged upgrade for BMW Big 6 builds

• Proven in high-horsepower turbo setups

• Includes ARP 2000 hardware

• Ideal for enthusiasts pushing beyond stock limits

This is how you build an M30 that doesn’t just survive boost—it thrives on it.

🏁 Final Verdict

The maXpeedingrods Connecting Rods for BMW M30/M30B35 are a solid upgrade for anyone looking to extract serious power from the legendary Big 6.

Strong, affordable, and ready for boost—basically everything BMW should’ve given you from the factory… but didn’t.