Auto Barn
Est. 1957
Eagle

Eagle Chevy 4.8/5.3 LS 4.000in Crank 24 Tth Relctr 6.125in I-Beam 3.820in Pistons Balanced Assembly

$2681.48

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Eagle Chevy 4.8/5.3 LS 4.000in Crank 24 Tth Relctr 6.125in I-Beam 3.820in Pistons Balanced Assembly. A balanced rotating assembly for naturally-aspirated racing builds.

Key Features

  • Fits Chevy 4.8L and 5.3L LS engines.
  • Includes a balanced rotating assembly for naturally-aspirated racing applications.
  • Features a forged 4.000-inch 4140 crankshaft with a 24-tooth reluctor wheel.
  • Equipped with 6.125-inch 4340 I-beam connecting rods using 7/16-inch ARP 8740 bolts.
  • Comes with forged 4032 DSS -5cc flat top pistons with a 3.820-inch bore.
  • Includes plasma-moly file-fit rings and King XP rod and main bearings.
This rotating assembly is designed for Chevy 4.8L and 5.3L LS 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

Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

If you're building a naturally-aspirated LS engine for racing, this balanced rotating assembly from Eagle is a solid foundation. It's designed for Chevy 4.8L and 5.3L LS applications, giving you a complete, balanced rotating assembly ready for installation. This assembly includes a forged 4.000-inch crankshaft with a 24-tooth reluctor wheel, which is crucial for proper engine management system operation.

The rods are strong 6.125-inch I-beam units made from 4340 steel, secured with 7/16-inch ARP 8740 bolts for reliable performance under stress. Paired with these are forged 4032 DSS pistons featuring a -5cc flat top design and a 3.820-inch bore size. The assembly also comes with plasma-moly file-fit rings and King XP rod and main bearings, ensuring smooth operation and durability. Having the assembly balanced from the factory saves you a significant step and ensures proper weight distribution for the crankshaft, connecting rods, and pistons, which is vital for engine longevity and performance at higher RPMs.

This balanced rotating assembly is intended for racing use and is not CARB approved, meaning it cannot be shipped to California. Ensure you have all necessary supporting components for your engine build, as this is a core rotating assembly kit.

Specifications

Brand
Eagle
Manufacturer Part #
B627003820
UPC
793348040899

Frequently Asked Questions

Eagle Chevy 4.8/5.3 LS 4.000in Crank 24 Tth Relctr 6.125in I-Beam 3.820in Pistons Balanced Assembly

$2681.48