ATK High Performance Engines Parts and Accessories

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

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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

Part Number: HPE-SP41-1P

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Core Charge $600.00
• Free Shipping
• Special Order

Engine Assembly, Short Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-SP45

Not Yet Reviewed

• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP67

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP68

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

Not Yet Reviewed

• Free Shipping
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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP70

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Free Shipping
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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP71

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Free Shipping
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SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

Not Yet Reviewed

• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP72

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Free Shipping
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ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP74

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Free Shipping
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Chevy LM7 383CI Short Block +8cc Dished Pistons 24 Tooth

Part Number: HPE-SP77

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Core Charge $285.00
• Free Shipping
• Special Order

Chevy LM7 383CI Short Block +32cc Dished Pistons 24 Tooth

Part Number: HPE-SP79

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

• Core Charge $285.00
• Free Shipping
• Special Order

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: Feb 13, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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: Jan 12, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

Engine Assembly, Short Block, LT1/LT4, 6.2L/376, 4.065 in. Bore, 3.622 in. Stroke, Forged Pistons, Two Valve Relief, 58 Tooth, Chevy, Gen V, LT, Each

Part Number: HPE-SP102

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Free Shipping
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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

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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: Jan 12, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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: Jan 12, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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

Part Number: HPE-SP40-G4

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

Engine Assembly, Stage 3 Crate Engine, Long Block, Ford, Small Block, 302, Each

Part Number: HPE-HP06C

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• Core Charge $550.00
• Free Shipping
• Special Order

Crate Engine Ford 302CI Engine 300HP Fox Pan Complete EFI

Part Number: HPE-HP06C-EFI

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• Core Charge $550.00
• Free Shipping
• Special Order

FORD 502 515HP Fitech EFI COMP/DYNO

Part Number: HPE-HP102C-EFI

Not Yet Reviewed

• Core Charge $650.00
• Free Shipping
• Special Order

Crate Engines, Ford 502 545 HP Stage 3 Long Block, 8.2L/502, Assembled, Internal Balance, Aluminum Cylinder Heads, EFI, Ford, Big Block, Each

Part Number: HPE-HP19C-EFI

Not Yet Reviewed

• Core Charge $650.00
• Free Shipping
• Special Order

Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block Windsor, 393, Each

Part Number: HPE-HP17

Not Yet Reviewed

• Core Charge $410.00
• Free Shipping
• Special Order