Manley H-Beam Connecting Rod Set - BMW Toyota B58 Gen1 & Gen2

Product Details

Designed for the demands of high-performance builds, the Manley H-Beam Connecting Rod Set is the perfect upgrade for BMW/Toyota B58 engines. Manufactured from premium 4340 steel forgings, these rods offer a lightweight construction without compromising strength. Engineered to replace BMW part numbers #11248623419 and #11247589671, the 148mm-long rods are ideal for high-horsepower and forced-induction applications.

Whether you're tuning for street, track, or drag racing, these rods can handle up to 8500 RPM and support engines producing up to 1200 horsepower. Each set includes ARP 2000 rod bolts, providing additional clamping force and reliability under extreme conditions.

Precision Engineering for Maximum Reliability:
Manley's H-Beam rods undergo advanced manufacturing processes, including:

• Heat treatment and stress relief for durability under heavy loads.
• Shot peening to increase fatigue resistance.
• Magnaflux inspection for detecting any micro-cracks.
• Weight-matched to within +1.5 grams to ensure perfect balance across all cylinders.
• Tapered Small-End Design ensures compatibility with both OEM and aftermarket pistons.

This precision-crafted set ensures valvetrain stability, enhanced engine balance, and long-term performance, making it a trusted choice for enthusiasts building high-boost or high-RPM B58 engines.

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