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Eagle SIR I-Beam Connecting Rods

4.67 out of 5 stars 83 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.

Results 1 - 25 of 25

Connecting Rods, 5140 Steel, I-Beam, 5.700 in. Length, Bushed, Chevy SB, Each

Part Number: ESP-SIR5700BB-1

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5140 STEEL I-BEAM FORD 302 5.090" PRESS

Part Number: ESP-SIR5090FP-1

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5140 STEEL I-BEAM CHEV BB 6.385" BUSHED

Part Number: ESP-SIR6385B-1

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5140 STEEL I-BEAM CHEV SB 5.700" PRESS

Part Number: ESP-SIR5700BP-1

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5140 STEEL I-BEAM CHRY SB 6.123"

Part Number: ESP-SIR6123CB-1

5.0 out of 5 stars ( 1 )

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

Part Number: ESP-SIR6100NLW-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM CHEV BB 6.135" BUSHED

Part Number: ESP-SIR6135B-1

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5140 STEEL I-BEAM CHEV SB 6.000" BUSHED

Part Number: ESP-SIR6000BB-1

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5140 STEEL I-BEAM 351W 5.956 PRESS FIT

Part Number: ESP-SIR5956FP-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM FORD 302 5.400" 2.123"

Part Number: ESP-SIR5400FB-1

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5140 STEEL I-BEAM CHEV SB 5.850" BUSHED

Part Number: ESP-SIR5850BB-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM LS 6.1" BUSHED

Part Number: ESP-SIR6100M-1

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

5140 STEEL I-BEAM FORD 302 5.400" 2.100"

Part Number: ESP-SIR5400CB-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM CHEV SB 5.700" 2.00"

Part Number: ESP-SIR5700SB-1

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

5140 STEEL I-BEAM CHEV SB 5.700" 2000

Part Number: ESP-SIR5700BB201

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM CHEV SB 6.000" PRESS

Part Number: ESP-SIR6000BP-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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5140 STEEL I-BEAM CHEV SB 6.0" SJ PRESS

Part Number: ESP-SIR6000SP-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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

Part Number: ESP-6125BBLW-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM FORD 302 5.090" BUSHED

Part Number: ESP-SIR5090FB-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM CHEV SB 6.000" SJ

Part Number: ESP-SIR6000SB-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM JEEP (6) 4.0L/242 C.I.

Part Number: ESP-SIR6123JP-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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5140 STEEL I-BEAM CHEV SB 6.200" BUSHED

Part Number: ESP-SIR6200BB-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM CHEV SB 6.250" BUSHED

Part Number: ESP-SIR6250BB-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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5140 STEEL I-BEAM PONTIAC 400-455 PRESS

Part Number: ESP-SIR6625PP-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

5140 STEEL I-BEAM CHEV BB 6.700" BUSHED

Part Number: ESP-SIR6700B-1

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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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