ATK High Performance Engines Engine Assemblies

Crate Engine, GM 496 Stroker 600 HP Stage 3 Long Block, Assembled, Hydraulic Roller Tappet, Internal Balance, Aluminum Heads, Chevy, 7.4L, 8.1L, Each

Part Number: HPE-HP631PC

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

• Core Charge $600.00
• 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: Jun 4, 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: Jun 10, 2026 if ordered today

• Core Charge $550.00
• Free Shipping
• Special Order

Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block Windsor, 408, Each

Part Number: HPE-HP81

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• Core Charge $550.00
• Free Shipping
• Special Order

Crate Engine, Ford 427 C.I.D. 545 HP, Complete Engine, 4-bolt Mains, 10.4:1 Compression, Dart SHP Block, Aluminum Cylinder Heads, Ford, Windsor, Each

Part Number: HPE-HP112CBLK

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP39

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Core Charge $370.00
• Free Shipping
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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: Jun 29, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

Crate Engines, GM 365 LQ9 550 HP Stage 1 Long Block, 6.0L/364, Assembled, Internal Balance, Aluminum Cylinder Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LQ9-LB-1

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Core Charge $560.00
• Free Shipping
• Special Order

Crate Engines, GM 415 LS3 Stroker 620 HP Stage 1 Long Block, 6.8L/415, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LS02

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Estimated Ship Date: Jun 29, 2026 if ordered today

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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

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

Not Yet Reviewed

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Engine Assembly, Stage 2 Crate Engine, Long Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-HP42M

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Free Shipping
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FORD 502 515HP Fitech EFI COMP/DYNO

Part Number: HPE-HP102C-EFI

Not Yet Reviewed

• Core Charge $650.00
• Free Shipping
• Special Order

Crate Engine, GM 383 Stroker, Long Block, Base, Internal/External Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP107

Not Yet Reviewed

• Core Charge $510.00
• Free Shipping
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Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP33

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

• Core Charge $510.00
• Free Shipping
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Crate Engines, GM 496 Stroker 600 HP Stage 2 Long Block, 8.1L/496, Assembled, Internal Balance, Aluminum Cylinder Heads, Chevrolet, 7.4L, 8.1L, Each

Part Number: HPE-HP631PM

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

• Core Charge $600.00
• Free Shipping
• Special Order

Chevy LS 408 Boosted/NOS Short Block 58 Tooth 4cc Flat Top

Part Number: HPE-SP32-B

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

Crate Engines, GM 489 Stroker 565 HP Stage 1 Long Block, 8.0L/489, Assembled, Internal Balance, Aluminum Heads, Chevrolet, 7.4L Big Block Gen V, Each

Part Number: HPE-HP411P

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Core Charge $600.00
• Free Shipping
• Special Order

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: Jun 29, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

Crate Engines, Ford 502 515 HP Stage 1 Long Block, 8.2L/502, Assembled, Internal Balance, Aluminum Cylinder Heads, Ford, Big Block 385 Series, Each

Part Number: HPE-HP102

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Core Charge $650.00
• Free Shipping
• Special Order

Crate Engine, Ford 347 Stroker 410 HP Stage 3 Long Block with EFI, Assembled, Hydraulic Roller Tappet, External Balance, Aluminum Heads, FiTech, Each

Part Number: HPE-HP20C-EFI

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Core Charge $550.00
• Free Shipping
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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: Jun 29, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

CRATE ENGINE

Part Number: HPE-HPLH6N

Not Yet Reviewed

• Core Charge $560.00
• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP74

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Free Shipping
• Special Order

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: Jun 29, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order