Specifications
- Brand
- Eagle
- Part #
- 638713903
- UPC
- 793348060828

Eagle Chevy LS1 3.900in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.903in Pistons Rotating Assembly
$2861.75
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Eagle Chevy LS1 rotating assembly with 3.900" crank, 6.125" I-beam rods, and 3.903" pistons. Ideal for naturally-aspirated racing.
Key Features
- Fits Chevy LS1 engines.
- Includes 3.900-inch crankshaft.
- Features 6.125-inch I-beam connecting rods.
- Comes with 3.903-inch pistons.
- Equipped with a 58-tooth reluctor wheel.
- Designed for naturally-aspirated racing use.
⚠️ 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
This is the Eagle Chevy LS1 Pro Street Rotating Assembly, built for serious performance in naturally-aspirated racing applications. It's a complete package designed to form the heart of your LS1 engine build, offering a robust foundation for high-output builds. The assembly includes a precisely machined 3.900-inch crankshaft, strong 6.125-inch I-beam connecting rods, and 3.903-inch pistons, all balanced and ready for installation. This rotating assembly is a popular choice for racers looking to maximize power from their LS1 engine without forced induction.
Eagle has a solid reputation for producing well-built engine components, and this rotating assembly is no exception. The Pro Street line is engineered for durability and performance, featuring a 58-tooth reluctor wheel for proper crank position sensing. The I-beam connecting rods offer a good balance of strength and weight, suitable for the stresses of racing. When you're assembling an engine for the track, having a reliable and precisely balanced rotating assembly like this one is critical for achieving optimal performance and longevity. This assembly is designed to fit Chevy LS1 engines, providing a direct upgrade path for those seeking more power from their naturally-aspirated setup.
When undertaking a performance engine build of this caliber, it's important to ensure all supporting components are up to the task. While this assembly provides the core rotating parts, you'll want to consider matching it with appropriate camshafts, cylinder heads, and a robust valvetrain to fully realize its potential. Remember that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions and consult with a professional engine builder to ensure proper assembly and tuning for your specific application.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 638713903
- UPC
- 793348060828
Frequently Asked Questions
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