Specifications
- Brand
- Eagle
- Part #
- 12264040
- UPC
- 793348007373

Eagle Chevy 400 350 Mains 3.750in Crank 6.000in H-Beam -16cc 4.165in Pistons Rotating Assembly
$2774.80
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Eagle Competition Rotating Assembly for Chevy 400/350 mains. Features 3.750" forged crank, 6.000" H-beam rods, 4.165" pistons.
Key Features
- Fits Chevy 400 and 350 mains.
- Includes a 3.750-inch forged 4340 steel crankshaft.
- Comes with 6.000-inch H-beam connecting rods featuring 7/16-inch ARP 8740 bolts.
- Features forged 4032 DSS pistons with a -16cc inverted dome design and a 4.165-inch bore size.
- Includes plasma-moly file-fit piston rings for custom gapping.
- Equipped with King XP rod and main bearings for enhanced 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
Eagle is well-known for building strong internal engine components, and this competition rotating assembly is a prime example of their work for Chevy V8s. This kit is designed to handle the demands of racing, including applications using nitrous oxide or forced induction. It's a complete package to rebuild the heart of your engine, ensuring it can withstand high-performance use.
At the core of this assembly is a 3.750-inch forged 4340 steel crankshaft, chosen for its strength and durability under extreme stress. Paired with this are 6.000-inch H-beam connecting rods, secured with 7/16-inch ARP 8740 bolts, which offer a robust connection capable of handling significant power. The pistons are forged 4032 DSS units with an inverted dome design, measuring 4.165 inches in bore size and featuring a -16cc volume to help achieve your desired compression ratio. This assembly also includes plasma-moly file-fit piston rings, allowing for precise gap setting to match your engine's bore and intended use. For smooth operation and reliable lubrication, King XP rod and main bearings are included, providing excellent wear resistance.
This rotating assembly is intended for performance builds and is not CARB approved, meaning it cannot be legally shipped to California. It's important to note that this is a comprehensive kit, but you will need to source other necessary engine components and ensure proper assembly techniques are followed for optimal performance and longevity.
Specifications
- Brand
- Eagle
- Manufacturer Part #
- 12264040
- UPC
- 793348007373
Frequently Asked Questions
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