
Specifications
- Brand
- Eagle
- Part #
- 639833905
- UPC
- 793348028446

Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.905in Pistons Rotating Assembly
$2527.55
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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 I-beam connecting rods made from 4340 steel with 7/16-inch ARP 8740 bolts.
- Comes with forged 4032 MAHLE -6cc flat-top pistons for a 3.905-inch bore.
- Includes plasma-moly file-fit piston rings for a custom seal.
- Equipped with King XP rod and main bearings for durability.
⚠️ 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 brings together a strong crankshaft, durable connecting rods, and well-matched pistons to handle the demands of performance builds. This assembly is designed to be the heart of a powerful engine, ready for the track.
At its core is a 4.000-inch forged 4140 crankshaft, chosen for its strength and ability to handle higher RPMs. Paired with it are 6.125-inch I-beam connecting rods made from 4340 steel, known for their robust construction. These rods use 7/16-inch ARP 8740 bolts, a popular choice for their reliability in high-stress applications. The pistons are forged 4032 MAHLE flat-tops with a -6cc dish, designed for a 3.905-inch bore. 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, offering excellent wear resistance and performance.
This assembly is specifically configured for a 58-tooth reluctor wheel, common on many LS1 applications. While this kit is built for performance, please note it is not CARB approved and cannot be shipped to California. Ensure you have all necessary supporting components for your engine build, as this is a critical rotating assembly designed for serious performance.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 639833905
- UPC
- 793348028446
Frequently Asked Questions
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