ATK High Performance Engines Parts and Accessories

Engine Assembly, Short Block, LT1/LT4, 6.8L/416, 4.065 in. Bore, 4.000 in. Stroke, Forged Pistons, Two Valve Relief, 58 Tooth, Chevy, Gen V, LT, Each

Part Number: HPE-SP105

Not Yet Reviewed

Estimated Ship Date: Oct 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Assembly, Short Block, 58 Tooth Reluctor Wheel, Hypereutectic Pistons, LM7, 330 CID, Chevy, LS, Each

Part Number: HPE-SP115

Not Yet Reviewed

Estimated Ship Date: Oct 10, 2025 if ordered today

• Core Charge $175.00
• Drop Ship
• Free Shipping
• Special Order

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

Part Number: HPE-SP44

Not Yet Reviewed

Estimated Ship Date: Oct 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

SHORT BLOCK ENGINE

Part Number: HPE-SPE3881500

Not Yet Reviewed

Estimated Ship Date: Oct 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Chevy LM7 383CI Short Block +3cc Flat Top Pistons 24 Tooth

Part Number: HPE-SP80

Not Yet Reviewed

Estimated Ship Date: Oct 2, 2025 if ordered today

• Core Charge $285.00
• Free Shipping
• Special Order

ENGINE BLOCK

Part Number: HPE-SPE3881800

Not Yet Reviewed

Estimated Ship Date: Sep 25, 2025 if ordered today

• Free Shipping
• Special Order

CHEV 632 BB COMP/DYNO

Part Number: HPE-HP108C

Not Yet Reviewed

Estimated Ship Date: Oct 2, 2025 if ordered today

• 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: Oct 2, 2025 if ordered today

• 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: Oct 2, 2025 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

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

Part Number: HPE-HP107C

Not Yet Reviewed

• Core Charge $510.00
• Free Shipping
• Special Order

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

Part Number: HPE-HP107M

Not Yet Reviewed

• Core Charge $510.00
• Free Shipping
• Special Order

Crate Engines, GM 383 Stroker 500 HP Stage 3 Long Block with EFI, 6.3L/383, Assembled, Aluminum Heads, FiTech EFI System, Chevy, Small Block, Each

Part Number: HPE-HP55C-EFI

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $510.00
• Free Shipping
• Special Order

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: Sep 18, 2025 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: Sep 18, 2025 if ordered today

• Core Charge $600.00
• Free Shipping
• Special Order

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: Sep 18, 2025 if ordered today

• Core Charge $600.00
• Free Shipping
• Special Order

Crate Engines, Ford 347 Stroker 410 HP Stage 3 Long Block with EFI, 5.7L/347, Assembled, External, 28 oz. Imbalance, Ford, Small Block Windsor, Each

Part Number: HPE-HP80C-EFI

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $550.00
• Free Shipping
• Special Order

Engine Assembly, Stage 2 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block, 347, Each

Part Number: HPE-HP80M

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 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

5.0 out of 5 stars ( 1 )

• Core Charge $550.00
• Free Shipping
• Special Order

Engine Assembly, Stage 2 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block Windsor, 408, Each

Part Number: HPE-HP81M

Not Yet Reviewed

• Core Charge $550.00
• Free Shipping
• Special Order

CHEV 383CI 415HP-STREET TBI Cam

Part Number: HPE-HP94-TBI

Not Yet Reviewed

• Core Charge $510.00
• Free Shipping
• Special Order

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

Part Number: HPE-SP79

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $285.00
• Free Shipping
• Special Order

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: Sep 18, 2025 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: Sep 18, 2025 if ordered today

• Core Charge $410.00
• 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: Sep 18, 2025 if ordered today

• Core Charge $410.00
• 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: Sep 18, 2025 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order