What kind of applications is this crankshaft best suited for?

This Manley Turbo Tuff Series crankshaft is specifically designed for high horsepower and high boost applications. Its robust construction and advanced features make it ideal for heavily modified EJ20 and EJ25 engines.

What makes the "Direct Shot" oiling passages important?

The "Direct Shot" oiling passages are an updated design that ensures oil is delivered directly from the main oil gallery to each main bearing. This provides consistent and optimal lubrication, which is crucial for bearing and journal longevity in high-performance engines.

Does this crankshaft require any special balancing or machining for installation?

The crankshaft is precisely balanced by Manley, including knife-edged counterweights for stability. While it's designed as a direct replacement for the factory crankshaft in compatible vehicles, always consult with a professional engine builder to ensure all components are properly matched and installed for your specific build.

Specifications

Brand: Manley Performance
Part #: 190160B
UPC: 807298105376

Manley Subaru EJ20/EJ25 4340 Billet 75mm Stroke Turbo Tuff Series Crankshaft

Name: Manley Subaru EJ20/EJ25 4340 Billet 75mm Stroke Turbo Tuff Series Crankshaft
Brand: Manley Performance
SKU: manley-performance-manley-subaru-ej20-ej25-4340-billet-75mm-stroke-turbo-tuff-se-t14-14628
Price: 2394.80 USD
Availability: BackOrder

$2394.80

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Subaru EJ20/EJ25 4340 Billet 75mm Stroke Turbo Tuff Series Crankshaft. Built for high horsepower and boost.

Key Features

Fits Saab 9-2X, Subaru Baja, Forester, Impreza, Legacy, and Outback models.
Manufactured from 4340 billet material for enhanced durability and performance.
Features gun-drilled crank pin and counterweights for a lightweight design.
Knife-edged counterweights ensure precise balance and stability.
Undergoes multi-step heat treatment and nitriding for improved strength and longevity.
Includes "Direct Shot" oiling passages for direct lubrication to main bearings.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're building a high-horsepower Subaru EJ20 or EJ25 engine, this Manley Performance Turbo Tuff Series crankshaft is a solid foundation. It's specifically designed for boosted applications where durability and precise operation are critical. This crankshaft fits a range of Subaru models like the Impreza, Forester, and Legacy, as well as the Saab 9-2X and Subaru Baja.

This crankshaft is machined from a solid piece of 4340 billet material, which is known for its strength and reliability under extreme stress. To further enhance its performance and longevity, Manley has gun-drilled the crank pin and counterweights for a lighter design, and the counterweights are knife-edged. This process helps ensure precise balancing and stability, even at high RPMs. The crankshaft also goes through a multi-step heat treatment and nitriding process, which significantly boosts its strength and resistance to wear. Each unit is also stress relieved, shot peened, and 100% magnafluxed to meet Manley's strict quality standards, so you know it's built to last.

Manley has also updated the oil passages with their "Direct Shot" design. This means oil is directed straight from the main oil gallery to each main bearing, ensuring they stay well-lubricated and reducing wear over time. This attention to detail is crucial for maintaining engine health in high-performance builds. When you're pushing the limits of your EJ engine, a well-built crankshaft like this one is essential for reliable power delivery.