CHEVROLET Chevy small block Gen III/IV (LS-based engines) Engine Assemblies

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP67

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Estimated Ship Date: Sep 18, 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: Sep 18, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

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Estimated Ship Date: Sep 18, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP70

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Estimated Ship Date: Sep 18, 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: Sep 18, 2025 if ordered today

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SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

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Estimated Ship Date: Sep 18, 2025 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP72

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Estimated Ship Date: Sep 18, 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: Sep 18, 2025 if ordered today

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Chevy LM-7/LS 347CI Short Block +11cc Dished Pistons 24 Tooth

Part Number: HPE-SP76

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $285.00
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Crate Engines, GM LM7/LS1 347CI 500 HP Stage 1 Long Block, 5.7L/347, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LM7-LB-2

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $285.00
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Crate Engines, GM LM7/LS1 383CI 515 Plus HP Stage 1 Long Block, 6.3L/383, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LM7-LB-3

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $285.00
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Short Block, Chevrolet LS Gen IV 364, Internally Balanced, 24 Tooth Reluctor, +3.2cc Flat Top Pistons, Each

Part Number: HPE-SP93-G4

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 364, Internally Balanced, 24 Tooth Reluctor, +11cc Dish Pistons, Each

Part Number: HPE-SP94-G4

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Estimated Ship Date: Sep 18, 2025 if ordered today

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

Part Number: HPE-SP40-G4

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Estimated Ship Date: Sep 18, 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: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Chevy LS 408 Boosted/NOS Short Block 58 Tooth -18cc Dish

Part Number: HPE-SP31-B

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 58 Tooth Reluctor, +18cc Dish Pistons, Each

Part Number: HPE-SP31-G4

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, +18cc Dish Pistons, Each

Part Number: HPE-SP31-G4-B

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP36

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 58 Tooth Reluctor, +29cc Dish Pistons, Each

Part Number: HPE-SP36-G4

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Chevy LS 408 Boosted/NOS Short Block 24 Tooth -10cc Dish

Part Number: HPE-SP37-B

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +10cc Dish Pistons, Each

Part Number: HPE-SP37-G4

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +18cc Dish Pistons, Each

Part Number: HPE-SP38-G4

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Estimated Ship Date: Sep 18, 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, +18cc Dish Pistons, Each

Part Number: HPE-SP38-G4-B

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $410.00
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ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP39

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Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $370.00
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