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

Crate Engine, Long Block, Chevy GM, LS/LSX, Gen III, 24x Crank Reluctor, Aluminum Heads, Each

Part Number: SUM-150153

4.41 out of 5 stars ( 39 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185BK

4.69 out of 5 stars ( 26 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Natural Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185

4.7 out of 5 stars ( 27 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Cylinder Heads, LS3, Aluminum, 260cc Intake Runner Volume, 95cc Exhaust Runner Volume, Pair

Part Number: AFR-1845

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Crate Engine, Chevy LQ4 6.0L, Long Block, Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP93

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 8/25/2025

• Core Charge $560.00
• Free Shipping

Pro LS 4340 Rotating Assembly, 408 Cid., 4.030 bore, 4.000 stroke, 24X, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244003020

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

Accessory Drive Systems, LS Mid-Mount, Serpentine Style, Alternator, Water Pump, Power Steering, A/C, Hardware, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-180BK

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Engine Rotating Assembly, Street/Strip, Forged Piston, Forged Crank, I-Beam Rods, Chevy, Small Block, LS2, Kit

Part Number: ESP-B627144030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Pulley Kit,serpentine,Chevy LS ,Aluminum,AC,Power steering-Plastic Reservoir,170A alternator,Gloss black

Part Number: EMS-MS118-90BK

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Standard Deck, Chevrolet, Each

Part Number: SUM-150216

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Bare Block, Cast Iron, LS Mains, 4.125 in. Bore, 9.24 in. Deck Height, Each

Part Number: DRT-31867212

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Accessory Drive System, Serpentine, 6-groove, Black Anodized Finished, Power Steering, Air Conditioning, Chevy LS, Kit

Part Number: AAY-FDS-LS-201

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Cylinder Heads, LSX Mongoose, Aluminum, Assembled, 65cc Combustion Chamber, 230cc Intake, Chevy, Pair

Part Number: AFR-1660

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Engine Drive System, Front Runner, Aluminum, Polished, Chevy LS, Small Block, Kit

Part Number: VTA-174014

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Pro LS 4340 Rotating Assembly, 416 Cid., 4.070 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400706

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 24X, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R24409035

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

Pro LS 4340 Rotating Assembly, 415 Cid., 4.065 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400656

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

Head Combo, GenX® Top-End, 580hp, 520 ft-lbs. Torque, GM, LS3, Square Port, Kit

Part Number: TFS-K326-580-520

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APO-31V-AS

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Power Steering, AC, SD-7, Polished Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-185P

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Pro LS 4340 Rotating Assembly, 417 Cid., 4.080 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400806

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Power Steering, GM 2, Black Finish, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-186BK

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Pulley Kit, Performance Ratio, Tru Trac Serpentine System, Aluminum, Polished, Chevy, Kit

Part Number: BSP-13450

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

• Free Shipping

Pro LS Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 24X, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit rings, H Bearings

Part Number: SUM-R2436L0302

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025