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Est. 1957
Eagle

Eagle Chevy LT1 350 1Pc 3.480in Crank 5.700in H-Beam -21cc 4.040in Pistons Rotating Assembly

$2751.09

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Eagle Chevy LT1 350 rotating assembly. Includes 3.480in crank, 5.700in H-beam rods, and -21cc 4.040in pistons. Not CARB approved.

Key Features

  • This rotating assembly fits Chevy LT1 350 engines.
  • Features a 3.480-inch stroke forged steel crankshaft.
  • Includes 5.700-inch long forged H-beam connecting rods.
  • Comes with pistons designed for a 4.040-inch bore.
  • Pistons have a -21cc dish volume for compression ratio tuning.
  • Not CARB approved; cannot ship to California.
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About this part

Product Details

This Eagle rotating assembly starts with a 3.480-inch stroke crankshaft, forged from strong steel for durability under high performance demands. It's designed to work with a 4.040-inch bore, making it a solid choice for rebuilding or upgrading your Chevy LT1 350 engine. The H-beam connecting rods measure 5.700 inches long and are also forged, offering a robust connection between the piston and crankshaft, capable of handling increased cylinder pressures.

The included pistons are designed with a -21cc dish, which helps achieve a specific compression ratio when paired with the right cylinder heads and head gasket thickness. These pistons are made to fit a 4.040-inch bore. This assembly is a popular choice for builders looking to increase displacement and power from their LT1 350. It's important to note that this assembly is not CARB approved and cannot be shipped to California due to emissions regulations.

When planning your build, consider that this is a significant component for your engine's bottom end. Ensure all supporting components, such as bearings, rings, and fasteners, are selected to match the performance level this rotating assembly is built for. Proper balancing of the assembly is also a critical step for smooth operation and longevity, so consult with your machine shop or refer to Eagle's recommendations for balancing procedures.

Specifications

Brand
Eagle
Manufacturer Part #
12130040
UPC
793348066660

Frequently Asked Questions

Eagle Chevy LT1 350 1Pc 3.480in Crank 5.700in H-Beam -21cc 4.040in Pistons Rotating Assembly

$2751.09