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Est. 1957
Eagle

Eagle Chevy 350 3.750in Crank 5.700in H-Beam -18cc 4.040in Pistons Balanced Assembly

$2783.01

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Eagle Chevy 350 balanced rotating assembly with 3.75" forged crank, H-beam rods, and Icon pistons. Part# B12304040. Not CARB approved.

Key Features

  • Fits Chevy 350 engines.
  • Includes a balanced rotating assembly.
  • Features a forged 4340 crankshaft with a 3.750-inch stroke.
  • Equipped with 5.700-inch H-beam connecting rods and 7/16-inch ARP 8740 bolts.
  • Comes with 4.040-inch forged 4032 Icon pistons with an -18cc inverted dome.
  • Includes plasma-moly file-fit rings for precise clearance.
This rotating assembly is designed for Chevy 350 engines. It is not CARB approved and cannot be shipped to California.

⚠️ 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

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About this part

Product Details

This is a balanced rotating assembly from Eagle, specifically built for Chevy 350 engines. It includes a forged 4340 crankshaft with a 3.750-inch stroke, 5.700-inch H-beam connecting rods secured with 7/16-inch ARP 8740 bolts, and 4.040-inch forged 4032 Icon pistons featuring an -18cc inverted dome. This assembly is balanced and comes with plasma-moly file-fit rings and King XP rod and main bearings, making it ready for serious performance builds.

Eagle Competition Rotating Assemblies are designed for demanding applications, including racing use with nitrous and forced induction. The forged 4340 crank and H-beam rods offer robust strength for high-stress environments. The Icon pistons are forged from 4032 aluminum, known for its good thermal expansion properties, and feature an inverted dome design to help achieve specific compression ratios. The included file-fit rings allow for precise piston-to-wall clearance, which is crucial for optimal sealing and performance, especially in boosted or high-RPM applications. The ARP bolts ensure the connecting rods are securely fastened under extreme loads.

This balanced assembly simplifies the engine building process by providing a matched set of critical rotating components. It’s important to note that this assembly is not CARB approved and cannot be shipped to California due to emissions regulations. Always consult your engine builder and manufacturer's instructions for proper installation and break-in procedures.

Specifications

Brand
Eagle
Manufacturer Part #
B12304040
UPC
793348033082

Frequently Asked Questions

Eagle Chevy 350 3.750in Crank 5.700in H-Beam -18cc 4.040in Pistons Balanced Assembly

$2783.01