Manley Connecting Rod Set, BMW M20, H-Beam

Manley H-Beam Connecting Rods for BMW M20 Engines – Available at 5150 AutoSport

The Manley Performance H-Beam Connecting Rod Set offers the perfect balance of lightweight design and exceptional strength for your BMW M20 engine. Forged from premium 4340 steel, these rods are engineered for high-performance applications, including turbocharging or supercharging setups. With a 135mm length, they are a reliable solution for enthusiasts looking to push their M20 engine to new limits.

These rods can handle up to 8500 RPM and are designed to support builds generating up to 1000 horsepower. Each rod features expanded mating surfaces to withstand the increased load and pressure of forced induction, ensuring long-term durability and stable performance under extreme conditions.

Included with the kit are ARP rod bolts, providing extra security and peace of mind when running high-boost or high-RPM setups. Manley’s meticulous manufacturing process ensures top-tier quality, including:

• Heat treatment and stress relief for enhanced durability.
• Shot peening to resist fatigue and extend lifespan.
• Magnaflux inspection to ensure crack-free integrity.
• Weight matching to +1.5 grams for optimal engine balance.

Whether you're building a track-day weapon or a high-horsepower street car, Manley’s H-Beam Connecting Rods give you the reliability and precision you need for BMW M20 performance.

Key Features:

• Designed for BMW M20 engines with 135mm rod length.
• Supports up to 1000 HP for turbocharged and supercharged builds.
• 4340 steel construction for superior strength without excess weight.
• Includes ARP rod bolts for enhanced clamping power.
• Precision weight-matched to +1.5 grams for smooth, balanced operation.

Non-Tapered Small End - NOT Compatible with OEM Pistons.

BMW M20B20 Applications:

BMW 3 Series

1977-1982     E21     320 / 326
1982-1994     E30     320i

BMW 5 Series

1977-1981     E12     520 / 526
1981-1987     E28     520i

BMW 7 Series

1981-1987     E23     720i

BMW M20B23 Applications:

BMW 3 Series

1977-1982     E21     323i
1982-1994     E30     323i

BMW M20B25 Applications:

BMW 3 Series

1985-1993     E30     325i / 325is / 325ix

BMW 5 Series

1987-1990     E34     525i

BMW M20B27 Applications:

BMW 3 Series

1982-1987     E30     325e / 325es [North America]

BMW 5 Series

1982-1987     E28     525e / 528e