ATK High Performance Engines Parts and Accessories

Crate Engines, GM 496 Stroker 600 HP Stage 1 Long Block, 8.1L/496, Assembled, Internal Balance, Aluminum Cylinder Heads, Chevrolet, 7.4L, 8.1L, Each

Part Number: HPE-HP631P

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• Core Charge $600.00
• Free Shipping
• Special Order

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: Jan 22, 2026 if ordered today

• Core Charge $600.00
• 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

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: Jan 22, 2026 if ordered today

• Core Charge $550.00
• Free Shipping
• Special Order

CRATE ENGINE, Chev 383 415HP Polished

Part Number: HPE-HP94CPOL

Not Yet Reviewed

• Core Charge $510.00
• Free Shipping
• Special Order

LQ4 364CI 550HP L/B

Part Number: HPE-LQ4-LB-2

Not Yet Reviewed

• Core Charge $575.00
• 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 Engine, Ford 502 515 HP Stage 2 Long Block, Assembled, Hydraulic Flat Tappet, Internal Balance, Aluminum Heads, Ford, Big Block 385 Series, Each

Part Number: HPE-HP102M

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• Core Charge $650.00
• Free Shipping
• Special Order

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
• Special Order

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
• Special Order

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: Feb 13, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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: Feb 13, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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: Feb 13, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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: Feb 13, 2026 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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

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

• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

Not Yet Reviewed

• Free Shipping
• Special Order

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
• Special Order

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
• Special Order