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Est. 1957
Eagle

Eagle Chevy 4.8/5.3 LS 4.000in Crank 58 Tth Relctr 6.125in I-Beam 3.780in Pistons Rotating Assembly

$2509.71

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Eagle Chevy 4.8/5.3 LS rotating assembly with 4.000" crank, 6.125" I-beam rods, and 3.780" pistons. Built for naturally-aspirated racing.

Key Features

  • Fits Chevy 4.8L and 5.3L LS engines.
  • Features a 4.000-inch forged 4140 crankshaft.
  • Includes a 58-tooth reluctor wheel for engine management.
  • Comes with 6.125-inch I-beam connecting rods made from 4340 steel.
  • Rods are secured with 7/16-inch ARP 8740 bolts.
  • Forged 4032 DSS flat-top pistons measure 3.780 inches with a -5cc dish.
This rotating assembly is designed for Chevy 4.8L and 5.3L LS engines. Check manufacturer specifications for full compatibility details.

⚠️ 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 Eagle Pro Street rotating assembly is built around a 4.000-inch forged 4140 crankshaft, a solid foundation for your Chevy LS engine rebuild. It's specifically designed for naturally-aspirated racing applications, meaning it’s tuned for maximum performance without forced induction. The assembly includes a 58-tooth reluctor wheel, essential for proper engine management on many LS platforms.

You'll find 6.125-inch I-beam connecting rods made from strong 4340 steel, secured with 7/16-inch ARP 8740 bolts for reliable performance under stress. The pistons are forged 4032 DSS flat-tops with a -5cc dish, measuring 3.780 inches in bore diameter. These come with plasma-moly file-fit rings, giving you the flexibility to achieve a precise seal in the cylinder bore. King XP rod and main bearings are included, offering robust lubrication and wear resistance for the critical rotating components.

This assembly is a well-built package for those looking to push their 4.8L or 5.3L LS engine in a racing environment. Keep in mind that this part 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 #
627603780
UPC
793348050911

Frequently Asked Questions

Eagle Chevy 4.8/5.3 LS 4.000in Crank 58 Tth Relctr 6.125in I-Beam 3.780in Pistons Rotating Assembly

$2509.71