CHEVROLET Engine Assemblies

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +4cc Flat Top Pistons, Each

Part Number: HPE-SP39-G4-B

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Estimated Ship Date: Dec 22, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +29cc Dish Pistons, Each

Part Number: HPE-SP40-G4-B

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Estimated Ship Date: Dec 22, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet Big Block Gen V 489/496 Stroker, Internally Balanced, Forged Crankshaft, +20cc Dome Pistons, Each

Part Number: HPE-SP41-1P

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Estimated Ship Date: Dec 22, 2025 if ordered today

• Core Charge $600.00
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Engine Assembly, Short Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-SP45

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP67

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Estimated Ship Date: Dec 22, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP68

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Estimated Ship Date: Dec 22, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP70

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Estimated Ship Date: Dec 22, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP71

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Estimated Ship Date: Dec 22, 2025 if ordered today

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SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP72

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Estimated Ship Date: Dec 22, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP74

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Black Pulley Kit

Part Number: MLL-BLS4273KBT56

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission. w/ Black Pulley Kit

Part Number: MLL-BLS4273KBTKX

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Polished Pulley Kit

Part Number: MLL-BLS4273KT56

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission

Part Number: MLL-BLS4273T56

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission

Part Number: MLL-BLS37634L7

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission

Part Number: MLL-BLS37684L7

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission

Part Number: MLL-BLS42784L7

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission

Part Number: MLL-BLS4278T56

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Supercharged, T56 Manual Transmission

Part Number: MLL-S0025

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 376 c.i. LS Builder Series Truck Edition Iron Block, Fuel Injected, 4L65/70E Automatic Transmission 4WD Ready

Part Number: MLL-BLS37684X4

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 376 c.i. LS Builder Series Truck Edition Iron Block, Fuel Injected, 4L65/70E Automatic Transmission 4WD Ready w/ Black Pulley Kit

Part Number: MLL-BLS3768KB4X4

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission

Part Number: MLL-BLS3768TKX

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission w/ Polished Pulley Kit

Part Number: MLL-BLS3768K4L7

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Estimated Ship Date: Nov 24, 2025 if ordered today

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