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  • Filters

  • Make/Engine
  • Connecting Rod Length Center to Center (in.)
  • Connecting Rod Beam Style
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Eagle Specialty Products

Eagle SIR I-Beam Connecting Rods

4.67 out of 5 stars 82 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 39 Items.

Results 1 - 21 of 21

Eagle SIR I-Beam Connecting Rods SIR5700BBLW

Eagle SIR I-Beam Connecting Rods SIR5700BBLW

Eagle SIR I-Beam Connecting Rods SIR5700BBLW

Connecting Rods, SIR 5140 Steel I-Beam, Bushed, Chevy, Small Block, Set of 8

Part Number: ESP-5700BBLW

4.57 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6135B

Eagle SIR I-Beam Connecting Rods SIR6135B

Eagle SIR I-Beam Connecting Rods SIR6135B

Connecting Rods, SIR 5140 I-Beam, Bushed, Chevy, Big Block, Set of 8

Part Number: ESP-6135B

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5700BPLW

Eagle SIR I-Beam Connecting Rods SIR5700BPLW

Eagle SIR I-Beam Connecting Rods SIR5700BPLW

Connecting Rods, SIR 5140 Steel I-Beam, Press Fit, Chevy, Small Block, Set of 8

Part Number: ESP-5700BPLW

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5090FB

Eagle SIR I-Beam Connecting Rods SIR5090FB

Eagle SIR I-Beam Connecting Rods SIR5090FB

Connecting Rods, SIR 5140 Steel I-Beam, Bushed, Ford, Small Block, Set of 8

Part Number: ESP-5090FB

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6625PP

Eagle SIR I-Beam Connecting Rods SIR6625PP

Eagle SIR I-Beam Connecting Rods SIR6625PP

Connecting Rods, 6.625 in. Length, I-Beam, 5140 Forged, Press-Fit, 0.980 in. Pin, Pontiac, V8, Set of 8

Part Number: ESP-6625PP

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5700SPLW

Eagle SIR I-Beam Connecting Rods SIR5700SPLW

Eagle SIR I-Beam Connecting Rods SIR5700SPLW

Connecting Rods, SIR I-Beam, 5.7 in. Length, Cap Screw, Press Fit, Chevy, Small Block, Set of 8

Part Number: ESP-5700SPLW

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6123CB

Eagle SIR I-Beam Connecting Rods SIR6123CB

Eagle SIR I-Beam Connecting Rods SIR6123CB

Connecting Rods, SIR 5140 I-Beam, Bushed, Mopar, Small Block LA, Set of 8

Part Number: ESP-6123CB

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5956FB

Eagle SIR I-Beam Connecting Rods SIR5956FB

Eagle SIR I-Beam Connecting Rods SIR5956FB

Connecting Rods, SIR 5140 I-Beam, Cap Screw, Bushed, Ford, Small Block, Set of 8

Part Number: ESP-5956FB

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6000BBLW

Eagle SIR I-Beam Connecting Rods SIR6000BBLW

Eagle SIR I-Beam Connecting Rods SIR6000BBLW

Connecting Rods, I-Beam, Bushed, 6 in. Length, 0.927 in. Floating Wrist, Forged 5140 Steel, 8740 Chromoly Bolts, Chevy, Small Block, Set of 8

Part Number: ESP-6000BBLW

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5700SBLW

Eagle SIR I-Beam Connecting Rods SIR5700SBLW

Eagle SIR I-Beam Connecting Rods SIR5700SBLW

Connecting Rods, SIR I-Beam, Forged 5140 Steel, 5.700 in. Length Center To Center, Chevrolet, Small Block, Set of 8

Part Number: ESP-SIR5700SBLW

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6135P

Eagle SIR I-Beam Connecting Rods SIR6135P

Eagle SIR I-Beam Connecting Rods SIR6135P

Connecting Rods, SIR 5140 I-Beam, Press Fit, Chevy, Big Block, Set of 8

Part Number: ESP-6135P

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5400FB

Eagle SIR I-Beam Connecting Rods SIR5400FB

Eagle SIR I-Beam Connecting Rods SIR5400FB

Connecting Rod, SIR I-Beam, Forged 5140 Steel, Shot-Peened, 5.400 in. Length, Ford, 0.927 in. Pin, Small Block Windsor, Set of 8

Part Number: ESP-SIR5400FB

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6200BBLW

Eagle SIR I-Beam Connecting Rods SIR6200BBLW

Eagle SIR I-Beam Connecting Rods SIR6200BBLW

5140 STEEL I-BEAM CHEV SB 6.200" BUSHED

Part Number: ESP-SIR6200BBLW

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5090FP

Eagle SIR I-Beam Connecting Rods SIR5090FP

Eagle SIR I-Beam Connecting Rods SIR5090FP

Connecting Rods, SIR 5140 Steel I-Beam, Press Fit, Ford, Small Block, Set of 8

Part Number: ESP-5090FP

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6123JP

Eagle SIR I-Beam Connecting Rods SIR6123JP

Eagle SIR I-Beam Connecting Rods SIR6123JP

Connecting Rods, SIR 5140 Steel I-Beam, Press-fit, Jeep, 4.0L, Set of 6

Part Number: ESP-SIR6123JP

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR5956FP

Eagle SIR I-Beam Connecting Rods SIR5956FP

Eagle SIR I-Beam Connecting Rods SIR5956FP

Connecting Rods, SIR 5140 Steel, I-Beam, 5.956 in. Length, Press Fit, Ford, Small Block, Set of 8

Part Number: ESP-SIR5956FP

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eagle SIR I-Beam Connecting Rods SIR6125BBLW

Eagle SIR I-Beam Connecting Rods SIR6125BBLW

Eagle SIR I-Beam Connecting Rods SIR6125BBLW

5140 STEEL I-BEAM CHEV SB 6.125" BUSHED

Part Number: ESP-SIR6125BBLW

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6250BBLW

Eagle SIR I-Beam Connecting Rods SIR6250BBLW

Eagle SIR I-Beam Connecting Rods SIR6250BBLW

5140 STEEL I-BEAM CHEV SB 6.250" BUSHED

Part Number: ESP-SIR6250BBLW

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6000SPLW

Eagle SIR I-Beam Connecting Rods SIR6000SPLW

Eagle SIR I-Beam Connecting Rods SIR6000SPLW

5140 STEEL I-BEAM CHEV SB 6.0" SJ PRESS

Part Number: ESP-SIR6000SPLW

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR5700BBLW

Eagle SIR I-Beam Connecting Rods SIR5700BBLW

Eagle SIR I-Beam Connecting Rods SIR5700BBLW

Connecting Rods I-Beam "SIR" Small Chevy 5.700" Length Bushed 570 Grams

Part Number: ESP-SIR5700BBLW

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR5400CB

Eagle SIR I-Beam Connecting Rods SIR5400CB

Eagle SIR I-Beam Connecting Rods SIR5400CB

Connecting Rod, SIR I-Beam, Forged 5140 Steel, Shot-Peened, 5.400 in. Length, Ford, Small Block Windsor, Set of 8

Part Number: ESP-SIR5400CB

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

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