Scat Crankshaft Small Block Forged Steel 4in

Description

Product Overview

The Scat Crankshaft is engineered for small‑block engines that demand precision and strength. Crafted from high‑grade forged steel, the crankshaft features a 4.000 in stroke and external balance, delivering consistent torque and reduced vibration. Its machined exterior provides a smooth surface for optimal oil flow, while the two‑piece seal design enhances durability. Weighing 77 lb and measuring 13.78 × 25.59 × 13.78 in, this component fits a range of performance applications.

Usage

Designed for both street and track use, the crankshaft excels in high‑performance builds, rebuild projects, and engine swaps. It is ideal for enthusiasts seeking increased horsepower, smoother idle, and reliable long‑term operation. Whether installed in a classic small‑block or a modern performance engine, the crankshaft’s forged construction tolerates aggressive tuning and high RPM conditions.

Why Choose Us

Scat brings decades of engineering expertise to every crankshaft, ensuring each piece meets strict OEM tolerances. Our forged steel undergoes rigorous heat‑treatment to achieve superior tensile strength and fatigue resistance. The external balance reduces harmonic stress, extending engine life. Backed by a comprehensive warranty and supported by a network of certified installers, Scat guarantees quality you can trust.

Key Features

• Forged steel construction for maximum strength and durability
• 4.000 in stroke delivers increased torque and power potential
• External balance minimizes vibration for smoother engine operation
• Machined exterior enhances oil flow and reduces wear
• Two‑piece seal design provides superior sealing and longevity

FAQ

What engine sizes are compatible with this crankshaft?

The Scat crankshaft is designed for small‑block V8 engines, typically ranging from 5.0 L to 6.4 L displacement, depending on bore and stroke combinations.

Do I need to replace other components when installing this crankshaft?

For optimal performance, it is recommended to replace the main bearings, rod bearings, and oil pump seals. Matching the crankshaft with Scat’s recommended bearing kits ensures proper clearances.

Is the crankshaft balanced for high‑rpm applications?

Yes, the external balance is calibrated for high‑rpm use, reducing harmonic vibrations and extending engine life in performance scenarios.

Can this crankshaft be used in a street‑legal rebuild?

Absolutely. The crankshaft meets all emissions and durability standards for street‑legal applications while providing performance benefits.

What warranty does Scat offer on this crankshaft?

Scat provides a limited lifetime warranty against material defects, giving you confidence in the crankshaft’s longevity.