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  • Filters

  • Make/Engine
  • Connecting Rod Length Center to Center (in.)
  • Pin End Bore Diameter
  • Quantity
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  • Advertised Horsepower Rating
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Eagle Specialty Products

Eagle SIR I-Beam Connecting Rods

4.68 out of 5 stars 84 Customer Reviews

Why spend time and money reconditioning your stock rods—when you can upgrade to a set of Eagle SIR I-Beam connecting rods for less? They're forged from 5140 steel f
Why spend time and money reconditioning your stock rods—when you can upgrade to a set of Eagle SIR I-Beam connecting rods for less? They're forged from 5140 steel for outstanding strength and reliability, and they come in both press-fit and bushed pin models. Their lightweight design places less stress on the rest of your rotating assembly to increase engine life and better handle high-rpm use. The rods are X-rayed, sonic-tested, magnafluxed, and shot-peened to stress-relieve the metal. They come with 12-point ARP Wave-Lok rod bolts and are weight-matched to within two grams. The big end sizing is controlled by in-ho
Why spend time and money reconditioning your stock rods—when you can upgrade to a set of Eagle SIR I-Beam connecting rods for less? They're forged from 5140 steel for outstanding strength and reliability, and they come in both press-fit and bushed pin models. Their lightweight design places less stress on the rest of your rotating assembly to increase engine life and better handle high-rpm use. The rods are X-rayed, sonic-tested, magnafluxed, and shot-peened to stress-relieve the metal. They come with 12-point ARP Wave-Lok rod bolts and are weight-matched to within two grams. The big end sizing is controlled by in-house CNC equipment to ensure precise machining and accurate fitment. Order the individual rod or set recommended for your year/make and engine application.

Showing In Stock Items. Show All 9 Items.

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Eagle SIR I-Beam Connecting Rods SIR6100MLW

Eagle SIR I-Beam Connecting Rods SIR6100MLW

Eagle SIR I-Beam Connecting Rods SIR6100MLW

Connecting Rods, SIR I-Beam, Forged 5140 Steel, 6.100 in. Length Center To Center, Chevrolet, Small Block LS, Set of 8

Part Number: ESP-SIR6100MLW

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6100NLW-1

Eagle SIR I-Beam Connecting Rods SIR6100NLW-1

Eagle SIR I-Beam Connecting Rods SIR6100NLW-1

Connecting Rods, SIR 5140 Steel I-Beam, Bushed, Chevrolet, Small Block LS, Each

Part Number: ESP-SIR6100NLW-1

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6100M-1

Eagle SIR I-Beam Connecting Rods SIR6100M-1

Eagle SIR I-Beam Connecting Rods SIR6100M-1

5140 STEEL I-BEAM LS 6.1" BUSHED

Part Number: ESP-SIR6100M-1

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6125BBLW-1

Eagle SIR I-Beam Connecting Rods SIR6125BBLW-1

Eagle SIR I-Beam Connecting Rods SIR6125BBLW-1

Connecting Rods, SIR 5140 I-Beam, Bushed, Chevy, Small Block, Each

Part Number: ESP-6125BBLW-1

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

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