Best Performance Engine Crankshafts of 2025
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Performance engine crankshafts are an essential component of any high-performance engine. They are designed to withstand the stresses of high RPMs and increased horsepower, providing increased durability and longevity for the engine. These crankshafts are typically made from high-strength materials such as forged steel or billet aluminum, and are precision machined to exacting tolerances to ensure optimal performance. Upgrading to a performance crankshaft can greatly improve engine response, torque, and overall power output, making it a popular choice among racing enthusiasts and performance enthusiasts alike.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 10 Performance Engine Crankshafts
Scat Crankshafts Cast Steel Crankshaft for Small Block Chevrolet
This cast steel crankshaft by Scat Crankshafts is designed for Small Block Chevrolet engines. The package dimensions are 9.24" in height, 24.79" in length, and 11.02" in width. It is a high-quality auto part in the Car Engine Crankshafts category.
Scat Crankshafts 910454 Crankshaft
The Scat 910454 Crankshaft is an essential component for enhancing your car's engine performance. With a stroke length of 4.000 inches, this crankshaft provides the necessary power and efficiency to optimize your engine's output. Manufactured in China, it combines quality craftsmanship with affordability. Weighing in at 67.0 pounds, this crankshaft is robust and designed to withstand the rigors of high-performance driving, ensuring longevity and reliability. By upgrading to this crankshaft, you can experience improved acceleration and overall vehicle responsiveness.
Scat Crankshafts 910526 Crankshaft
The Scat Crankshaft 910526 is designed specifically for performance engines, making it an excellent choice for enthusiasts looking to enhance their vehicle's power. With dimensions of 9.24 inches high, 24.79 inches long, and 11.02 inches wide, it fits perfectly in designated spaces, ensuring a hassle-free installation. Weighing in at 53.8 pounds, this crankshaft offers robust construction, adding durability and reliability to your engine. Made in China, it meets specific vehicle requirements, ensuring compatibility and optimal performance for your engine modifications.
Scat Crankshafts Cast Steel Crankshaft for Big Block Ford
Introducing the Scat Crankshafts Cast Steel Crankshaft for Big Block Ford. This high-quality auto part is designed to enhance the performance of your engine. With a stroke of 3.980", it provides improved power and torque, allowing you to experience a smoother and more efficient ride. The package includes one crankshaft, weighing 55.0 lb, making it easy to handle and install. Whether you're a professional mechanic or a DIY enthusiast, this Scat Crankshaft is a reliable choice for upgrading your vehicle. Get ready to enjoy enhanced performance and durability with this top-notch auto part.
Eagle Specialty Products 3.48" Cast Steel Crankshaft
This performance engine crankshaft is made in China, designed to fit specific vehicles, and comes in a package weighing 53 pounds with dimensions of 71.12L x 22.6H x 21.0W centimeters.
Scat Crankshafts Big Block Crankshaft
The Scat Big Block Crankshaft is a high-quality automotive part designed for performance engines. It comes in a single package, making it easy for you to get everything you need in one go. Crafted from durable cast steel, this crankshaft ensures reliability and strength for your big block Chevrolet. Plus, it is ready to use right out of the box, as it requires no batteries. This means you can focus more on your engine's performance without worrying about additional components. Experience enhanced performance and convenience with this reliable crankshaft from Scat Crankshafts.
Eagle Specialty Products Cast Steel Crankshaft
This vehicle-specific Eagle Specialty Products Cast Steel Crankshaft is made in Canada and weighs 52.8 pounds. Its package dimensions are 71.12 L x 22.098 H x 20.828 W (centimeters). This performance engine crankshaft is an essential component for your small block Chevy to enhance its overall performance.
Eagle Specialty Products Cast Steel Crankshaft for Small Block Chevy
This cast steel crankshaft is designed specifically for Small Block Chevy vehicles. It is made in China and weighs 54 pounds. The package dimensions are 71.0 L x 23.0 H x 20.0 W (centimeters). This crankshaft is a great option for those looking for a reliable and high-performance engine crankshaft.
Eagle Cast Steel Crankshaft for Small Block Chevy
The Eagle Specialty Products 104003750 3.75" Cast Steel Crankshaft is designed for Small Block Chevy vehicles. The crankshaft offers a stroke of 3.750 inches, is made of iron material, and is vehicle-specific. The package dimensions are 21.0 L x 72.4 H x 23.5 W (centimeters), with a total package weight of 24.494 kilograms. This product is ideal for car engine crankshafts.
Scat Crankshafts 9-302-3250 Cast Steel Crankshaft
The Scat Crankshafts Cast Steel Crankshaft is designed for small block Ford engines, providing a reliable performance upgrade. Weighing just 0.8 pounds, this crankshaft is lightweight, making it easier to handle during installation. With dimensions of 6.1" L x 5.4" W x 2.5" H, it fits well in various engine setups. As part of the performance engine crankshafts category, it enhances engine efficiency and power output, which is essential for those looking to boost their vehicle's performance. This product comes in a single package, ensuring you have everything you need for installation.
Frequently Asked Questions (FAQs)
1. What is the strongest crankshaft?
The strongest crankshaft for high-performance applications is the billet 4340 steel crankshaft. These crankshafts are carved from a solid chunk of steel and are known for their exceptional strength and durability.
2. What does a performance crankshaft do?
A performance crankshaft improves durability and can handle higher loads and RPMs without twisting, cracking, or failing. It is also finished to a higher standard of accuracy and precision compared to ordinary crankshafts.
3. What is the best type of crankshaft?
Billet crankshafts are considered the top-end high-performance crankshafts. They are made from a solid chunk of high-grade steel bar, typically 4340 material, and are machined through a series of processes to create the final crankshaft.
4. How much HP can a crankshaft handle?
The horsepower limit for a crankshaft depends on its type. Cast cranks can handle around 500 hp and a maximum of 6,500 rpm for small-block engines. Big-block engines with cast cranks can handle up to 650 hp. Forged cranks, specifically 4340 steel, are the standard for higher horsepower applications.
5. Which is better forged or billet crankshaft?
Both forged and billet crankshafts have their advantages. Forged crankshafts have an interwoven grain structure, providing superior tensile strength and improvements in elongation. Billet crankshafts, on the other hand, are a better option for custom one-off cranks since they don't require expensive tooling equipment.
6. Does changing crankshaft increase horsepower?
Increasing an engine's displacement with a longer stroke crankshaft can increase torque output and, in most cases, horsepower as well. Turbocharged applications may also benefit from improved boost response with a longer stroke crankshaft.
7. What is the benefit of a bigger crankshaft?
A bigger crankshaft can provide more low-end torque by increasing rotating mass. This can make the engine feel more responsive at lower RPMs. Additionally, a longer crankshaft can help reduce engine vibration and create a smoother ride for the operator.
8. What's better forged or cast crankshaft?
Forged crankshafts offer superior tensile strength and improvements in elongation compared to cast crankshafts. Once heat treated, forged crankshafts can have tensile strength ratings as high as 125,000 psi, while cast crankshafts typically start near 60,000 psi.
During our performance engine crankshaft research, we found 24 performance engine crankshaft products and shortlisted 10 quality products. We collected and analyzed 4,179 customer reviews through our big data system to write the performance engine crankshafts list. We found that most customers choose performance engine crankshafts with an average price of $305.91.
The performance engine crankshafts are available for purchase. We have researched hundreds of brands and picked the top brands of performance engine crankshafts, including Scat Crankshafts, Eagle. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.
Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.