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

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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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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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Eagle SIR I-Beam Connecting Rods SIR5700BP-1

5140 STEEL I-BEAM CHEV SB 5.700" PRESS

Part Number: ESP-SIR5700BP-1

Not Yet Reviewed

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Eagle SIR I-Beam Connecting Rods SIR5700SP-1

5140 STEEL I-BEAM CHEV SB 5.700" 2.00"

Part Number: ESP-SIR5700SP-1

Not Yet Reviewed

Estimated Ship Date: Today

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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: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR5700SB-1

5140 STEEL I-BEAM CHEV SB 5.700" 2.00"

Part Number: ESP-SIR5700SB-1

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6000BB-1

5140 STEEL I-BEAM CHEV SB 6.000" BUSHED

Part Number: ESP-SIR6000BB-1

Not Yet Reviewed

Estimated Ship Date: Today

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Eagle SIR I-Beam Connecting Rods SIR5850BB-1

5140 STEEL I-BEAM CHEV SB 5.850" BUSHED

Part Number: ESP-SIR5850BB-1

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6250BB-1

5140 STEEL I-BEAM CHEV SB 6.250" BUSHED

Part Number: ESP-SIR6250BB-1

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6000BP-1

5140 STEEL I-BEAM CHEV SB 6.000" PRESS

Part Number: ESP-SIR6000BP-1

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6200BB-1

5140 STEEL I-BEAM CHEV SB 6.200" BUSHED

Part Number: ESP-SIR6200BB-1

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6000SB-1

5140 STEEL I-BEAM CHEV SB 6.000" SJ

Part Number: ESP-SIR6000SB-1

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Eagle SIR I-Beam Connecting Rods SIR6000SP-1

5140 STEEL I-BEAM CHEV SB 6.0" SJ PRESS

Part Number: ESP-SIR6000SP-1

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

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