Engine Rotating Assemblies & Rebuild Kits

Pro LS 4340 Rotating Assembly, 376 Cid., 4.065 bore, 3.622 stroke, 24X, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R2436L0652

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Pro LS 4340 Piston and Rod Kit, 383 Cid., 3.903 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR409035

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Forged Rotating Assembly, 7.0L/427Cid, 4.125 Bore, 4.000 Stroke, 6.125 in. Rod, 4cc Piston, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS70001

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Engine Rebuild, Hypereutectic Dish, 4.040 in. Bore, Standard Rod, Standard Main, Chevy 383

Part Number: SUM-SBCKIT2-400

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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: Monday 10/26/2026 if shipped by air

Pro LS 4340 Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 24X, 6.125 rod,12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit ring, H Bearings

Part Number: SUM-R2436L00012

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Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.098 rod,12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R243600512

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Pro LS 4340 Piston and Rod Kit, 402 Cid., 4.000 bore, 4.000 stroke, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4000020

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Forged Rotating Assembly, 7.0L/427Cid, 4.125 Bore, 4.000 Stroke, 6.125 in. Rod, 4cc Piston, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS70003

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Engine Rebuild, Hypereutectic Dish, 4.040 in. Bore, .010 in. Crankshaft Undersize Rod, .010 in. Crankshaft Undersize Main, Chevy 383

Part Number: SUM-SBCKIT2-411

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Engine Rebuild, Hypereutectic Dish, 4.040 in. Bore, .030 in. Crankshaft Undersize Rod, .030 in. Crankshaft Undersize Main, Chevy 383

Part Number: SUM-SBCKIT2-433

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Engine Rebuild, Hypereutectic Dish, 4.000 in. Bore, .020 in. Crankshaft Undersize Rod, .020 in. Crankshaft Undersize Main, Chevy, 383

Part Number: SUM-SBCKIT2-022

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Pro LS 4340 Rotating Assembly, 360 Cid., 3.785 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R58407855

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Pro LS 4340 Rotating Assembly, 382 Cid., 3.898 bore, 4.000 stroke, 58x, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R584089816

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Pro LS Rotating Assembly, 330 Cid., 3.810 bore, Standard 3.622 stroke, 58x, 6.098 rod, 2cc dome, 11:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R58368102

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

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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Engine Re-Ring, Moly, 4.000 in. Bore, Standard Rod, Ford, 351M, Kit

Part Number: FEM-205624A-00

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Engine Re-Ring, Moly, 4.030 in. Bore, Standard Rod, Standard Main, Chevy, 350, Kit

Part Number: FEM-205-6037M300

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Engine Rebuild Kits, Re-Ring, 4.165 in. Bore, 0.010 in. Rod Bearing Crankshaft Undersize, 0.010 in. Main Bearing Crankshaft Undersize, Chevy, Kit

Part Number: FEM-2056282M411

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Engine Re-Ring, Moly, 4.360 in. Bore, .020 in. Rod, .010 in. Main, Ford, Lincoln, Mercury, 429/460, Kit

Part Number: FEM-205637M-021

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Engine Re-Ring, Moly, 4.360 in. Bore, .010 in. Rod, .020 in. Main, Ford, Lincoln, Mercury, 429/460, Kit

Part Number: FEM-205637M-012

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Engine Re-Ring, Moly, 4.000 in. Bore, .010 in. Rod, .030 in. Main, Ford 351W, Kit

Part Number: FEM-205-6116M013

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Engine Re-Ring, Moly, 3.766 in. Bore, .010 in. Rod, .010 in. Main, Chevy, 305, Kit

Part Number: FEM-205-6027M311

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Engine Re-Ring, Moly, 4.420 in. Bore, .010 in. Rod, Standard Main, Ford, 429/460, Kit

Part Number: FEM-205637M610

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Engine Re-Ring, Moly, 4.125 in. Bore, Standard Rod, Standard Main, Chevy, 400, Kit

Part Number: FEM-MK618C-000

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

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