Specifications
- Brand
- Eagle
- Part #
- 637763780
- UPC
- 793348059877

Eagle Chevy 4.8/5.3 LS 3.800in Crank 58 Tth Rlctor 6.125in I-Beam 3.780in Pistons Rotating Assembly
$2727.45
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Eagle Pro Street rotating assembly for Chevy 4.8/5.3 LS engines. Built for naturally-aspirated racing.
Key Features
- Fits Chevy 4.8L and 5.3L LS engines.
- Pro Street rotating assembly designed for naturally-aspirated racing.
- Includes a 3.800-inch stroke crankshaft.
- Features 6.125-inch I-beam connecting rods for strength and performance.
- Comes with 3.780-inch pistons.
- Equipped with a 58-tooth reluctor wheel for crankshaft position sensing.
⚠️ 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
Product Details
Eagle is well-known for building robust internal engine components, and this Pro Street rotating assembly is a prime example of their commitment to performance. This assembly is specifically designed for naturally-aspirated racing applications, meaning it’s built to handle the demands of engines that don’t rely on forced induction like turbochargers or superchargers. If you're working on a Chevy 4.8L or 5.3L LS engine and aiming for serious performance without boost, this is a solid foundation.
At the heart of this assembly is a 3.800-inch stroke crankshaft, paired with 6.125-inch I-beam connecting rods. These I-beam rods are a popular choice for their strength-to-weight ratio, making them well-suited for high-RPM operation. The assembly also includes 3.780-inch pistons, which are sized to work with this specific crank and rod combination for the 4.8L and 5.3L LS platforms. This balanced setup is crucial for ensuring smooth operation and durability under racing conditions. The 58-tooth reluctor wheel is also integrated, which is important for the engine's computer to accurately read crankshaft position.
When building a performance engine, the rotating assembly is one of the most critical parts. It’s the backbone that converts the up-and-down motion of the pistons into the rotational force that powers your vehicle. This Eagle assembly gives you a well-matched set of components from a reputable manufacturer, simplifying the process of building a powerful, naturally-aspirated LS engine. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and balancing procedures.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 637763780
- UPC
- 793348059877
Frequently Asked Questions
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