
Specifications
- Brand
- Eagle
- Part #
- 637623905
- UPC
- 793348027913

Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.905in Pistons Rotating Assembly
$2568.15
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Eagle Chevy LS1 Rotating Assembly. Built for naturally-aspirated racing, this assembly includes a forged crank, I-beam rods, and pistons.
Key Features
- Fits Chevy LS1 engines.
- Includes a 4.000-inch forged 4140 crankshaft with a 58-tooth reluctor.
- Features 6.125-inch 4340 I-beam connecting rods with 7/16-inch ARP 8740 bolts.
- Comes with forged 4032 DSS pistons measuring 3.905 inches with an inverted dome.
- Includes plasma-moly file-fit piston rings for a custom seal.
- Equipped with King XP rod and main bearings for robust 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 naturally-aspirated LS1 engine for racing, this Eagle Pro Street Rotating Assembly is a solid choice. It's designed to handle the demands of the track and gives you a strong foundation for your build. This assembly is centered around a 4.000-inch forged 4140 crankshaft, which is a key component for increasing displacement and torque in your LS1.
Eagle pairs this crank with 6.125-inch I-beam connecting rods made from strong 4340 steel, secured with 7/16-inch ARP 8740 bolts. For the pistons, you get forged 4032 DSS pistons with an inverted dome design, measuring 3.905 inches in bore size. These pistons come with plasma-moly file-fit rings, giving you flexibility during installation to achieve a proper seal. The assembly also includes King XP rod and main bearings, known for their durability and performance under load.
This rotating assembly is a complete package for your LS1 engine build. Keep in mind that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 637623905
- UPC
- 793348027913
Frequently Asked Questions
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