Kit of 6 high-performance 140mm forged connecting rods, specially designed for BMW M50B25 VANOS (M50B25TU) and M52B25 engines.

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Ideal for building a reliable low-end engine capable of handling very high power levels, even in turbo preparation.

This forged connecting rod kit is designed for enthusiasts wishing to make a BMW M50B25TU VANOS or M52B25 engine more reliable and stronger, as part of a performance road / track / drift preparation.

✅ Why 140mm connecting rods?
The M50 without VANOS and M52B28 engines use 135mm connecting rods, while the M50B25TU VANOS and M52B25 versions use 140mm connecting rods.
👉 This kit is therefore specific to 140mm motors and allows perfectly compliant fitting in place.

Made from 4340 EN24 forged steel, with an H-Beam profile, these connecting rods offer :

• extreme tensile strength and shock resistance
• stability at very high engine speeds
• Ideal for high-pressure turbo engines

Supplied with 12 ARP2000 (3/8″) bolts, the benchmark for engine preparation.

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⚙️ Technical specifications

• Type : Forged performance connecting rods
• Profile: H-Beam (H-shaped architecture)
• Centre-to-centre length (base ↔ head): 140 mm
• Connecting rod root diameter: 48 mm
• Connecting rod head diameter: 22 mm
• Material: 4340 EN24 forged steel
• Quantity: 6 connecting rods
• Screws supplied: 12 ARP2000 3/8″ screws
• Screw diameter: 95 mm
• Recommended tightening torque: 75 N-m (with suitable grease)
• Maximum power: 800 HP (6 cylinders)
• Maximum speed: 9000 RPM

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🚗 Engine compatibility

✔️ Compatible with:

• BMW 2.5 M50B25TU (VANOS)
• BMW 2.5 M52B25

❌ Not concerned (135mm connecting rods) :

• M50B25 without VANOS
• M52B28

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🧰 Applications

• M50 / M52 turbo preparation
• High-power forged engine stocking
• Track / drift / drag project
• High pressure E85 engines
• Reliability for very high revs

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🔧 Discount Autosport fitting tips

For reliable tightening of ARP2000 screws:

• ✅ Use ARP molybdenum grease
• ✅ Respect the torque: 75 N-m
• ✅ Always apply lubricant to :
• threads
• bearing surface under screw head
• ✅ Check play and bearings before final assembly

👉 A correctly lubricated ARP screw = real torque + maximum reliability.

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✅ Product benefits

• ✅ Complete kit 6 connecting rods + 12 ARP2000 screws
• ✅ High-strength forged steel 4340 EN24
• ✅ H-Beam competition profile
• ✅ Supports up to 800HP
• ✅ Compatible with high rpm 9000RPM
• ✅ Perfect for M50 / M52 turbo
• ✅ Specific 140mm mounting (VANOS / M52B25)
• ✅ Pro engine preparation quality