CHEVROLET Engine Assemblies

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP72

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Estimated Ship Date: May 11, 2026 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: May 11, 2026 if ordered today

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Engine Assembly, Short Block, LM7, 5.7/347, 3.903 in. Bore, 3.622 in. Stroke, Forged Dished Pistons, I-Beam, Chevy, LS, Each

Part Number: HPE-SP76-B

Not Yet Reviewed

• Core Charge $285.00
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Chevy LM7 383CI Short Block +8cc Dished Pistons 24 Tooth

Part Number: HPE-SP77

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $285.00
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Chevy LM7 383CI Short Block +32cc Dished Pistons 24 Tooth

Part Number: HPE-SP79

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Estimated Ship Date: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $410.00
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Engine Assembly, Short Block, LS3 364, Forged Flat Top Pistons, Chevy, Small Block LS, Each

Part Number: HPE-SP95-G4

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $410.00
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Short Block, Chevrolet LS Gen IV 364, Internally Balanced, 58 Tooth Reluctor, +11cc Dish Pistons, Each

Part Number: HPE-SP96-G4

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $410.00
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Engines, Dart Short Block, 427 C.I.,, Cast Iron, 4.125 Bore, 4.00 Stroke, Flat Top Forged Aluminum Pistons, H Beam Connecting Rod, LS, Chevy, Each

Part Number: HPE-SPE4271500

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Estimated Ship Date: May 11, 2026 if ordered today

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Engines, Dart Short Block, 427 C.I.,, Cast Iron, 4.125 Bore, 4.00 Stroke, Flat Top Forged Aluminum Pistons, I Beam Connecting Rod, LS, Chevy, Each

Part Number: HPE-SPE4271800

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Estimated Ship Date: May 11, 2026 if ordered today

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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, +10cc Dish Pistons, Each

Part Number: HPE-SP26-G4-B

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $410.00
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Chevy LS 408 Boosted/NOS Short Block 58 Tooth 4cc Flat Top

Part Number: HPE-SP32-B

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: HPE-SP36

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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, +10cc Dish Pistons, Each

Part Number: HPE-SP37-G4-B

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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: May 11, 2026 if ordered today

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

Part Number: HPE-SP39

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $370.00
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Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +4cc Flat Top Pistons, Each

Part Number: HPE-SP39-G4

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 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, +4cc Flat Top Pistons, Each

Part Number: HPE-SP39-G4-B

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order