ATK High Performance Engines Engine Assemblies

Crate Engines, GM LM7/LS1 347CI 500 HP Stage 1 Long Block, 5.7L/347, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LM7-LB-2

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $285.00
• Free Shipping
• Special Order

Crate Engines, GM LM7/LS1 383CI 515 Plus HP Stage 1 Long Block, 6.3L/383, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LM7-LB-3

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $285.00
• 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

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

Short Block, Chrysler Gen III 392, Internally Balanced, +2cc Flat Pistons, Each

Part Number: HPE-SP97

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Core Charge $460.00
• Free Shipping
• Special Order

Short Block, Chrysler Gen III 392, Internally Balanced, Nitrous/Boost, +2cc Flat Pistons, Each

Part Number: HPE-SP97-B

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Core Charge $460.00
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Free Shipping
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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

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

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-SP103

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Free Shipping
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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: 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 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +29cc Dish Pistons, Each

Part Number: HPE-SP40-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 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: Sep 18, 2025 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: Sep 18, 2025 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: Sep 18, 2025 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: Sep 18, 2025 if ordered today

• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Free Shipping
• Special Order

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP70

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 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: Sep 18, 2025 if ordered today

• Free Shipping
• Special Order

SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

• Free Shipping
• Special Order