Engine Kits & Rotating Assemblies

Engine Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Small Block, Kit

Part Number: SCA-1-41410BI

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Estimated Ship Date: Feb 12, 2026 if ordered today

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ROTATING ASSEMBLY

Part Number: ESP-14140040

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Estimated Ship Date: Jan 5, 2026 if ordered today

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BALANCED ROTATING ASSEMBLY

Part Number: ESP-B14142030

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B12010-060

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Estimated Ship Date: Jan 16, 2026 if ordered today

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BALANCED COMPETITION ASSEMBLY FORD FE

Part Number: ESP-B157094080

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B12108040

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Engine Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: SCA-1-42510BI

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Estimated Ship Date: Feb 23, 2026 if ordered today

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ROTATING ASSY 400 W/350 MAINS

Part Number: ESP-12155000

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Engine Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: SCA-1-42355

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Estimated Ship Date: Feb 9, 2026 if ordered today

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ROTATING ASSEMBLY UNBALANCED

Part Number: ESP-14140030

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Engine Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: SCA-1-42500BI

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-11011060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 22, 2026 if ordered today

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Rotating Assembly, Competition, Forged 4340 Crankshaft, Forged Dish Pistons, 2 pc. Seal, Ford, 408, Kit

Part Number: ESP-14700-030

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Engine Rotating Assembly, Forged Crank, Forged Pistons, I-Beam Rods, Mopar, Small Block, Kit

Part Number: SCA-1-48013BI

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400408

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Estimated Ship Date: Today

Pro LS 4340 Rotating Assembly, 402 Cid., 4.000 bore, 4.000 stroke, 58x, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584000020

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Pro LS 4340 Rotating Assembly, 364 Cid., 3.810 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R58408105

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Pro LS 4340 Rotating Assembly, 364 Cid., 3.810 bore, 4.000 stroke, 58x, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.7:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R584081012

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Estimated Ship Date: Today

COMPETITION ASSEMBLY CHEV LS 4.8/5.3

Part Number: ESP-127623810

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R58408205

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Pro LS 4340 Rotating Assembly, 377 Cid., 4.075 bore, 3.622 stroke, 58x, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L07512

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Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58369033

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Pro LS 4340 Rotating Assembly, 376 Cid., 4.065 bore, 3.622 stroke, 58x, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L06512

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Pro LS Rotating Assembly, 325 Cid, 3.780 bore, Standard 3.622 stroke, 58x, 6.098 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Ring, H Bearing

Part Number: SUM-R58367802

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Pro LS Rotating Assembly, 325 Cid, 3.780 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Ring, H Bearing

Part Number: SUM-R5836L7802

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Estimated Ship Date: Today