Auto Barn
Est. 1957
Eagle

Eagle Chrysler RB 4.150in Crank 6.760in H-Beam -29cc 4.350in Pistons Rotating Assembly

$3628.99

On Backorder

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

Eagle Chrysler RB rotating assembly with 4.150" forged crank, 6.760" H-beam rods, and 4.350" JE pistons. Built for high-performance racing.

Key Features

  • Fits Chrysler RB engines.
  • Includes a 4.150" forged 4340 steel crankshaft.
  • Features 6.760" H-beam connecting rods with 7/16" ARP 8740 bolts.
  • Comes with 4.350" forged 2618 JE pistons with a -29cc inverted dome.
  • Includes plasma-moly file-fit piston rings for custom gapping.
  • Equipped with King XP rod and main bearings.
This rotating assembly is designed for Chrysler RB engines. Please verify compatibility with your specific vehicle and engine build.

⚠️ 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 high-performance Chrysler RB engine, this rotating assembly from Eagle is a solid foundation. It includes a forged 4.150-inch crankshaft, 6.760-inch H-beam connecting rods with ARP 7/16-inch bolts, and 4.350-inch inverted dome pistons from JE. This combination is designed to handle the demands of serious racing applications, including those using nitrous or forced induction.

The forged 4340 steel crankshaft offers strength for high-RPM operation, while the H-beam connecting rods are well-known for their durability under stress. The JE pistons are made from 2618 aluminum and feature a -29cc inverted dome design, which is crucial for achieving specific compression ratios depending on your cylinder heads. This assembly also comes with plasma-moly file-fit piston rings, allowing for precise ring gap adjustment, and King XP rod and main bearings to ensure proper lubrication and reduced friction.

This is a complete rotating assembly, meaning all the core components for the bottom end of your engine are included. Keep in mind that this assembly is not CARB approved and cannot be shipped to California. It's a robust package for anyone looking to build a powerful RB engine for racing or extreme performance use.

Specifications

Brand
Eagle
Manufacturer Part #
21206030
UPC
793348019277

Frequently Asked Questions

Eagle Chrysler RB 4.150in Crank 6.760in H-Beam -29cc 4.350in Pistons Rotating Assembly

$3628.99