Specifications
- Brand
- Eagle
- Part #
- 638164040
- UPC
- 793348060699

Eagle Chevy LS2/LS3 3.900in Crank 24 Tth Rlctr 6.125in I-Beam Rods 4.040in Pistons Rotating Assembly
$2911.05
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Eagle Pro Street rotating assembly for Chevy LS2/LS3. Includes 3.900" crank, 6.125" I-beam rods, and 4.040" pistons.
Key Features
- Fits Chevy LS2 and LS3 engines.
- Includes a forged crankshaft with a 3.900-inch stroke.
- Comes with 6.125-inch I-beam connecting rods.
- Features 4.040-inch pistons.
- Designed for naturally-aspirated racing applications.
- This rotating assembly is not CARB approved and cannot ship to California.
⚠️ 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
What you get in this rotating assembly is a complete package designed to form the heart of your Chevy LS2 or LS3 engine. This kit includes a forged crankshaft with a 3.900-inch stroke, a set of 6.125-inch I-beam connecting rods, and 4.040-inch pistons. This assembly is built for naturally-aspirated racing applications, meaning it’s intended for engines that don't use forced induction like turbochargers or superchargers, and it's geared towards performance on the track or strip.
Eagle has put together this Pro Street rotating assembly with performance in mind. The forged crankshaft is a strong foundation, capable of handling the stresses of higher RPMs and increased cylinder pressures typical in racing. The I-beam connecting rods are a well-known design for their strength-to-weight ratio, making them a solid choice for performance builds. The included pistons are sized at 4.040 inches, which is a common bore size for these LS engines, and they are designed to work with the crankshaft and rods to achieve the desired displacement and compression ratio for racing.
When considering this assembly, remember it's specifically for naturally-aspirated racing use. It's crucial to ensure all components are properly balanced as a complete rotating assembly before installation to prevent vibrations and ensure longevity. Also, note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper balancing, assembly, and break-in procedures to get the most out of this performance rotating assembly.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 638164040
- UPC
- 793348060699
Frequently Asked Questions
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