Specifications
- Brand
- Eagle
- Part #
- 639063905
- UPC
- 793348028347

Eagle Chevy LS1 4.000in Crank 24 Tth Reluctor 6.125in I-Beam Rods 3.905in Pistons Rotating Assembly
$2638.27
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Eagle Chevy LS1 rotating assembly with 4.000" forged crank, 6.125" I-beam rods, and 3.905" pistons. Built for naturally-aspirated racing.
Key Features
- Fits Chevy LS1 engines.
- Includes a 4.000-inch forged 4140 crankshaft.
- Features 6.125-inch 4340 I-beam connecting rods with 7/16-inch ARP 8740 bolts.
- Comes with MAHLE forged 4032 aluminum pistons (3.905-inch bore, -26cc inverted dome).
- Includes plasma-moly file-fit rings for custom sealing.
- Equipped with King XP rod and main bearings.
⚠️ 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 naturally-aspirated LS1 engine for racing, this Eagle Pro Street rotating assembly is a solid foundation. It includes a forged crankshaft, connecting rods, pistons, rings, and bearings, all balanced and ready to go. This assembly is designed to handle the demands of performance applications where every pound-foot of torque matters.
The heart of this assembly is the 4.000-inch forged 4140 crankshaft, known for its strength and durability under high stress. Paired with it are 6.125-inch I-beam connecting rods made from robust 4340 steel, secured with 7/16-inch ARP 8740 bolts for reliable performance. The pistons are forged 4032 aluminum from MAHLE, featuring an inverted dome design with a -26cc dish and a 3.905-inch bore size. They come with plasma-moly file-fit rings, giving you flexibility during installation to achieve a perfect seal. King XP rod and main bearings are included to ensure smooth operation and longevity for the rotating assembly.
This assembly is specifically configured for a 24-tooth reluctor wheel, common in many LS1 applications. While it's built for performance, please note that it 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 #
- 639063905
- UPC
- 793348028347
Frequently Asked Questions
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