Auto Barn
Est. 1957
Eagle

Eagle Chevy 4.8/5.3 LS 4.000in Crank 24 Tth Rlctor 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 Pro Street balanced rotating assembly for Chevy 4.8/5.3 LS engines. Features a 4.000" forged crank and 3.820" pistons.

Key Features

  • Fits Chevy 4.8/5.3 LS engines.
  • Includes a 4.000-inch forged 4140 crankshaft.
  • Features 6.125-inch 4340 I-beam connecting rods with 7/16-inch ARP 8740 bolts.
  • Comes with forged 4032 DSS pistons (3.820-inch bore) with plasma-moly file-fit rings.
  • The assembly is balanced from the factory.
  • Includes King XP rod and main bearings.
This rotating assembly is designed for Chevy 4.8/5.3 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

Eagle is well-known for building strong internal engine components, and this Pro Street balanced rotating assembly is a prime example of their work for Chevy LS engines. If you're putting together a naturally-aspirated racing engine, this assembly is designed to handle the demands of the track. It includes everything you need to get your LS engine's rotating assembly built right.

At the heart of this assembly is a 4.000-inch forged 4140 crankshaft, built for durability. It's paired with 6.125-inch 4340 I-beam connecting rods, which come with 7/16-inch ARP 8740 bolts for a solid connection. The pistons are forged 4032 DSS units with an inverted dome design, measuring 3.820 inches and featuring plasma-moly file-fit rings. This entire assembly is balanced from the factory, saving you a significant step in the engine building process. It also includes King XP rod and main bearings to ensure smooth operation and proper clearances.

This assembly is specifically intended for naturally-aspirated racing applications. Please note that this part is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and break-in procedures.

Specifications

Brand
Eagle
Manufacturer Part #
B627023820
UPC
793348040943

Frequently Asked Questions

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

$2681.48