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Eagle 638114040 LS Rotating Assembly Stroke Rods - 3.900 6.125

Manufacturer

Picture for manufacturer Eagle

Part Number

638114040
6 reviews
Sale Price

$2,570.61

Estimated ship date Friday, November 27

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Eagle 638114040 is a complete rotating assembly engineered for LS engine applications requiring maximum strength and reliability. This competition-grade kit delivers proven performance for high-horsepower builds and demanding motorsports applications.

Complete Assembly Includes:

  • 3.900" stroke forged 4340 steel crankshaft with 24-tooth reluctor wheel
  • 6.125" center-to-center forged 4340 steel I-beam connecting rods
  • 7/16" ARP 8740 chromoly rod bolts for superior clamping force
  • Forged 4032 aluminum DSS pistons with -29cc inverted dome design
  • Piston rings, rod bearings, and main bearings

Key Features:

  • Forged 4340 chromoly steel crankshaft delivers exceptional strength and durability for high-stress applications
  • 4340 steel I-beam connecting rods provide excellent strength-to-weight ratio
  • ARP 8740 fasteners offer superior tensile strength over stock bolts
  • DSS forged pistons engineered for forced induction and nitrous applications
  • 24-tooth reluctor wheel ensures compatibility with late-model LS engine management systems

This rotating assembly is ideal for street/strip performance builds, forced induction applications, and competition engines. Professional balancing and proper clearance checking by a qualified machine shop is recommended prior to installation.

Thanks

Good service and delivery time, will buy again

Good

easy to navigate

Service was great. However, I first needed to change an order & found I had to cancel it and reorder correctly. I did this. However, the second order was also cancelled by the warehouse because they thought it was a duplicate. I reordered again! The battery was shipped this Monday & arrived Tuesday! So... other than the "safe" second cancellation, everything is 100% good! Battery arrived and I did a quick voltage test. 12.78 V ...

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