Specifications
- Brand
- Eagle
- Part #
- 637623898
- UPC
- 793348027883

Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.898in Pistons Rotating Assembly
$2568.15
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Eagle Chevy LS1 Pro Street rotating assembly with 4.000" forged crank, 6.125" I-beam rods, and 3.898" pistons. Ideal 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 DSS pistons with a -29cc inverted dome design.
- Includes plasma-moly file-fit rings for custom gapping.
- Equipped with King XP rod and main bearings for robust protection.
⚠️ 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 4.000-inch crankshaft, 6.125-inch I-beam connecting rods, and 3.898-inch pistons designed for the Chevy LS1 platform. This assembly is specifically put together to handle the demands of racing applications where consistent performance is key.
The heart of this assembly is the 4.000-inch forged 4140 crankshaft, built for strength and durability. 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 clamping force. The included pistons are forged 4032 DSS units with an inverted dome design, featuring a -29cc dish to achieve a specific compression ratio when paired with your cylinder heads. They come with plasma-moly file-fit rings, allowing for precise gap setting to match your engine's bore and intended use. King XP rod and main bearings are also included, offering well-built protection for critical rotating components.
This assembly is intended for racing use and is not CARB approved, meaning it cannot be shipped to California. Ensure you check all manufacturer specifications and local regulations before installation.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 637623898
- UPC
- 793348027883
Frequently Asked Questions
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