ATK High Performance Engines Engines & Components

Crate Engines, Chrysler 408 Stroker Magnum 465 HP Stage 2 Long Block, 6.7L/408, Assembled, Intake Manifold, Aluminum Heads, Dodge, 6.7L Magnum, Each

Part Number: HPE-HP46M-MAG

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

• Core Charge $260.00
• Drop Ship
• Free Shipping
• Special Order

Chevy LS 408 Boosted/NOS Short Block 24 Tooth -10cc Dish

Part Number: HPE-SP37-B

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

• Core Charge $410.00
• 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: Jan 26, 2026 if ordered today

• Core Charge $460.00
• Free Shipping
• Special Order

Crate Engines, GM 365 LQ4 550 HP Stage 1 Long Block, 6.0L/364, Assembled, Internal Balance, Aluminum Cylinder Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LQ4-LB-1

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

• Core Charge $560.00
• 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: Jan 27, 2026 if ordered today

• Core Charge $560.00
• 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
• 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: 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, Nitrous/Boost, 24 Tooth Reluctor, +18cc Dish Pistons, Each

Part Number: HPE-SP38-G4-B

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

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, LM7, 5.7/347, 3.903 in. Bore, 3.622 in. Stroke, Forged Dished Pistons, I-Beam, Chevy, LS, Each

Part Number: HPE-SP76-B

Not Yet Reviewed

• Core Charge $285.00
• Free Shipping
• Special Order

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

Part Number: HPE-SP77

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 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: Dec 22, 2025 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: Dec 22, 2025 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

ENGINE BLOCK

Part Number: HPE-SPE3881800

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• 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: Dec 22, 2025 if ordered today

• Free Shipping
• Special Order

Engines, Dart Short Block, 427 C.I.,, Cast Iron, 4.125 Bore, 4.00 Stroke, Flat Top Forged Aluminum Pistons, I Beam Connecting Rod, LS, Chevy, Each

Part Number: HPE-SPE4271800

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 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: Dec 22, 2025 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: Dec 26, 2025 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP36

Not Yet Reviewed

Estimated Ship Date: Dec 22, 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, +10cc Dish Pistons, Each

Part Number: HPE-SP37-G4-B

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP39

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• Core Charge $370.00
• 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: Dec 22, 2025 if ordered today

• Core Charge $410.00
• Free Shipping
• Special Order