CHEVROLET Chevy small block Gen III/IV (LS-based engines) Engines & Components

Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 24X, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244007521

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Estimated Ship Date: Monday 8/25/2025

Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 24X, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400756

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Estimated Ship Date: Monday 8/25/2025

Pro LS 4340 Rotating Assembly, 359 Cid., 3.780 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-R58407805

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Estimated Ship Date: Monday 8/25/2025

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 8/25/2025

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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Estimated Ship Date: Monday 8/25/2025

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 8/25/2025

Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 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-R584090316

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Estimated Ship Date: Monday 8/25/2025

Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58409035

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Estimated Ship Date: Monday 8/25/2025

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Power Steering, SFI Damper, Hardware, Natural Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-181

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Tensioner, SFI Damper, Natrual Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-182

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Tensioner, SFI Damper, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-182BK

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Pulleys, 6-groove, Natural Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-187

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Water Pump, Counterclockwise, Pulleys, 6-groove, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-187BK

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 508 A/C Only, Polished, Chevy, GMC, V8, Kit

Part Number: HLY-20-137P

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 10, 2025 if ordered today

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Pistons, Speed of Air, Dimpled Piston, 4032 Forged, 4.030 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, +4.00cc Flat Top, Piston Rings, Chevy, 6.0L, Kit

Part Number: UEM-XA552-030K2

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Pistons, Speed of Air, Dimpled, 4032 Forged, 4.070 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, +4.00cc Flat Top, Piston Rings, Chevy, 6.0L, 6.2L, Kit

Part Number: UEM-XA552-070K2

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Estimated Ship Date: Sep 24, 2025 if ordered today

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Connecting Rod, Ultra, I-beam, Forged 4330 Steel, 6.350 in. Length, Cap Screw, ARP Custom Aged Bolts, Bushed, Chevy, Small Block, LS, Each

Part Number: CPI-U17178CAMOD

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Crate Engine, Remanufactured, Long Block, Assembled, Buick, Chevrolet, GMC, Saab, 5.3L, Each

Part Number: VRE-VCX4

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Estimated Ship Date: Oct 1, 2025 if ordered today

• Core Charge $670.00
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Pistons, Speed of Air, Dimpled Piston, 4032 Forged, 4.005 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, +4.00cc Flat Top, Piston Rings, Chevy, 6.0L, Kit

Part Number: UEM-XA552-005K2

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Estimated Ship Date: Sep 23, 2025 if ordered today

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LSX-LS9 Cylinder Head Assembly

Part Number: NAL-19419190

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, LSX-LS7, Assembled, CNC-Ported, 70cc Combustion Chamber, Aluminum, Natural Finish, 2.20 in. Intake Valve, Rectangular Intake Port, Each

Part Number: NAL-19419197

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, LSX-SC, As-Cast, 70cc Combustion Chamber, Bare, Aluminum, Natural, Chevy, Each

Part Number: NAL-19417408

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Estimated Ship Date: Dec 1, 2025 if ordered today

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LT1 CAM and Head Kit

Part Number: NAL-19333525

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Estimated Ship Date: Dec 1, 2025 if ordered today

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ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP40

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Estimated Ship Date: Nov 19, 2025 if ordered today

• Core Charge $410.00
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Accessory Drive System, Serpentine, 6-groove, Polished Finished, Power Steering, Air Conditioning, Chevy LS, Kit

Part Number: AAY-FDS-LS-151

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Estimated Ship Date: Sep 8, 2025 if ordered today

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