Specifications
- Brand
- Eagle
- Part #
- 129554030
- UPC
- 793348063140

Eagle Chevy LS3 4.125in Crank 58 Tth Reluctor 6.125in H-Beam 4.030in Pistons Rotating Assembly
$3087.60
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
Eagle Chevy LS3 rotating assembly with 4.125" crank, 6.125" H-beam rods, and 4.030" pistons. A competition assembly built for serious engine builds.
Key Features
- Verified fitment for Chevy LS3 engines.
- Includes a 4.125-inch stroke crankshaft for increased displacement.
- Features 6.125-inch H-beam connecting rods, known for their strength in high-performance applications.
- Comes with 4.030-inch pistons, designed for a 4.030-inch bore.
- Includes a 58-tooth reluctor wheel for engine management system compatibility.
- This assembly is balanced for performance.
⚠️ 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
If you're building a high-performance Chevy LS3 engine for competition, a robust rotating assembly is the heart of your build. This Eagle rotating assembly is designed to handle the demands of serious power. It includes a 4.125-inch stroke crankshaft, 6.125-inch H-beam connecting rods, and 4.030-inch pistons, all balanced and ready to go for your project.
The crankshaft is forged from high-quality steel for strength and durability, featuring a 4.125-inch stroke to increase displacement and potential power output. The 6.125-inch H-beam connecting rods are well-built to withstand high RPMs and significant cylinder pressures, a common requirement in competition engines. Paired with 4.030-inch pistons, this assembly is designed for a 4.030-inch bore, allowing for a substantial engine displacement. The assembly also includes a 58-tooth reluctor wheel, essential for proper engine management system communication on many LS applications.
This rotating assembly is a popular choice for engine builders looking for a strong foundation for their LS3 builds. It's important to note that this assembly is not CARB approved and cannot be shipped to California due to emissions regulations. Always refer to manufacturer instructions for proper installation and balancing procedures to ensure optimal performance and longevity.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 129554030
- UPC
- 793348063140
Frequently Asked Questions
You Might Also Like
Similar products from the same category

Eagle Nissan RB26 Engine Connecting Rods (Set of 6)

Eagle Chevy 454 1Pc 4.250in Crank 6.385in I-Beam Rods 18cc Dome 4.280in Pistons Rotating Assembly

Eagle Oldsmobile 455 4.250in Stroke Cast Crankshaft

Eagle Chevy LS7 4.125in Crank 24 Tth Reluctor 6.125in H-Beam -5cc 4.135in Pistons Rotating Assembly
Eagle Chevy LS3 4.125in Crank 58 Tth Reluctor 6.125in H-Beam 4.030in Pistons Rotating Assembly
