Scat Crankshaft 3980 Stroke Engine Crankshaft Model 9-428-3980

Description

Product Overview

The Scat 3980 Stroke Crankshaft is a precision‑engineered component designed for high‑performance automotive applications. Manufactured by Scat Crankshafts, a leader in performance engine parts, this crankshaft is forged from premium grade steel, delivering exceptional strength and durability. Weighing 54.9 pounds and measuring 28.3 x 9.6 x 8.8 inches, it fits a wide range of V8 and V6 engine configurations. The 3.980″ stroke provides increased displacement, enhancing torque output while maintaining smooth rotational balance. The part number 9-428-3980-6490-2438 and manufacturer part number 9428398064902430 ensure exact fitment for OEM and aftermarket installations. With a proven track record reflected in a 4.0‑star rating from verified customers, this crankshaft stands out in the competitive #24 ranking for automotive performance engine crankshafts.

Engineers have incorporated advanced heat‑treatment processes to improve fatigue resistance, allowing the crankshaft to withstand extreme RPMs and high‑load conditions typical of racing and performance street builds. The design includes precision‑ground bearing journals that reduce friction and promote longevity of the surrounding bearing assembly. The component arrives as a single unit, packaged securely at 55 lb, ready for immediate installation by professional mechanics or experienced enthusiasts.

Usage

This crankshaft is ideal for a variety of usage scenarios, ranging from competitive motorsports to high‑performance street applications. Whether you are building a drag racing engine, a track day contender, or simply seeking a reliable upgrade for daily driving, the Scat 3980 Stroke Crankshaft provides the power and durability required. Its forged‑steel construction makes it suitable for engines that experience frequent high‑load cycles, such as those found in muscle cars, hot rods, and off‑road trucks. The increased stroke length contributes to higher torque at lower RPMs, making it a popular choice for drivers who demand strong acceleration without sacrificing reliability.

Installation is straightforward for those familiar with engine rebuilding procedures. The crankshaft pairs well with Scat’s line of forged pistons, connecting rods, and performance bearings, creating a cohesive powertrain package. It also integrates seamlessly with aftermarket camshafts and intake manifolds, allowing you to fine‑tune engine characteristics to match your performance goals. For daily drivers, the crankshaft’s balanced design reduces engine vibration, leading to a smoother ride and extended component life.

Why Choose Us

Choosing Scat means selecting a brand with decades of engineering expertise and a reputation for delivering race‑proven components. Each crankshaft undergoes rigorous quality control testing, including dimensional inspection, hardness verification, and dynamic balancing, ensuring that you receive a part that meets or exceeds OEM specifications. Scat stands behind its products with a comprehensive warranty, providing peace of mind and support throughout the lifespan of your engine build.

Our commitment to customer satisfaction extends beyond the product itself. We offer technical assistance from experienced engineers who can guide you through installation, tuning, and maintenance. The Scat 3980 Stroke Crankshaft is backed by a network of authorized dealers and service centers, ensuring that you have access to genuine parts and expert service wherever you are. When you invest in a Scat crankshaft, you are investing in a legacy of performance, reliability, and unmatched craftsmanship.

Key Features

• Forged‑steel construction delivers superior strength and fatigue resistance for high‑RPM applications.
• 3.980″ stroke increases engine displacement and torque without compromising reliability.
• Precision‑ground bearing journals reduce friction and extend bearing life.
• Balanced design minimizes vibration, enhancing driver comfort and component longevity.
• Comprehensive technical support and warranty provide confidence and after‑sales service.

FAQ

What engines are compatible with the Scat 3980 Stroke Crankshaft?

The crankshaft fits a wide range of V8 and V6 engines that use the 9‑428‑3980‑6490‑2438 model number. It is commonly installed in performance builds for Chevrolet, Ford, and Dodge platforms, but always verify clearance and mounting specifications before purchase.

Is the crankshaft suitable for street use or only for racing?

It is engineered for both street and race applications. The forged‑steel material and balanced design provide the durability needed for daily driving while delivering the performance gains desired on the track.

Can I install this crankshaft myself, or do I need a professional?

Installation requires standard engine rebuilding tools and knowledge of crankshaft mounting procedures. Experienced DIY enthusiasts can install it, but we recommend professional installation for optimal results and to maintain warranty coverage.

What warranty does Scat offer on this crankshaft?

Scat provides a limited warranty that covers material defects and workmanship for a specified period. Details are available through authorized dealers and the Scat website.

How does the 3.980″ stroke affect engine performance?

The longer stroke increases the engine’s swept volume, resulting in higher torque output at lower RPMs. This translates to stronger acceleration and improved overall power delivery, especially in performance-oriented applications.