ATK High Performance Engines Engine Assemblies

Crate Engines, Chrysler 5.7L Gen III Hemi 400 HP Long Block, 5.7L/345, Assembled, Aluminum Heads, without MDS, Chrysler, Dodge, Jeep, 5.7L, Each

Part Number: HPE-HP103T

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $460.00
• Free Shipping

Crate Engine, Mopar 360 Small Block Stage 3, 320 HP, Long Block, External Engine Balance, Magnum Heads, EFI, Each

Part Number: HPE-HP73C-EFI

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $260.00
• Free Shipping

Short Block Engine, LM7 383, Chevy LS, Forged Crank, Forged Piston, Dish, +15 Piston Head Volume, I-Beam Rods, 6-Bolt Main, Internal Balance, Each

Part Number: HPE-SP78

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $285.00
• Free Shipping

Engine Assembly, Stage 3 Crate Engine, Long Block, 2-Piece Main Seal, Ford, Big Block 385, 460, Each

Part Number: HPE-HP19C

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $650.00
• Free Shipping

Engine Assembly, Stage 2 Crate Engine, Long Block, Ford, Small Block, 302, Each

Part Number: HPE-HP08M

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $550.00
• Free Shipping

Crate Engine, GM 350 Small Block Stage 3, 350 HP, Long Block, External/Internal Engine Balance, Vortec Heads, EFI, Each

Part Number: HPE-HP32C-EFI

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $510.00
• Free Shipping

Engine Assembly, Stage 1 Crate Engine, Marine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP90

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $510.00
• Free Shipping

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP38

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $410.00
• Free Shipping

CHEV 632 BB COMP/DYNO

Part Number: HPE-HP108C

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Crate Engines, GM 408 LQ4 Stroker 600 HP Stage 1 Long Block, 6.7L/408, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LS01

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

• Core Charge $560.00
• Drop Ship
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• Special Order

CRATE ENGINE, Chev 350 390HP Black

Part Number: HPE-HP89CBLK

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

• Core Charge $510.00
• Drop Ship
• Free Shipping
• Special Order

Crate Engine, Base Long Block, Aluminum Heads, Hydraulic Roller Camshaft, Chevy, 383, Each

Part Number: HPE-HP101

Not Yet Reviewed

Estimated Ship Date: Jun 17, 2026 if ordered today

• Core Charge $510.00
• Drop Ship
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• Special Order

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +4cc Flat Top Pistons, Each

Part Number: HPE-SP39-G4

Not Yet Reviewed

Estimated Ship Date: Jun 23, 2026 if ordered today

• Core Charge $410.00
• Drop Ship
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• Special Order

Engine, New Short Block, 377 CI,Cast Iron, 4.0 Bore, 3.750 Stroke, Forged H Beam Rod, Forged Aluminum Flat Top Pistons, Internal Balanced, Chevy, Each

Part Number: HPE-SP53NB

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

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Engine, New Short Block, 377 CI,Cast Iron, 4.0 Bore, 3.750 Stroke, Forged I Beam Rod, Forged Aluminum Flat Top Pistons, Internal Balanced, Chevy, Each

Part Number: HPE-SP52NB

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

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Crate Engines, Chrysler 5.7L Gen III Hemi 400 HP Long Block, 5.7L/345, Assembled, Aluminum Cylinder Heads, with MDS, Chrysler, Dodge, Jeep, 5.7L, Each

Part Number: HPE-HP103

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

• Core Charge $460.00
• Free Shipping

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: Jun 24, 2026 if ordered today

• Core Charge $410.00
• Drop Ship
• Free Shipping
• Special Order

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: Jun 15, 2026 if ordered today

• Core Charge $260.00
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Chevy LM-7/LS 347CI Short Block +11cc Dished Pistons 24 Tooth

Part Number: HPE-SP76

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

• Core Charge $285.00
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CRATE ENGINE, Chev 383 415HP Polished

Part Number: HPE-HP94CPOL

Not Yet Reviewed

Estimated Ship Date: Jun 17, 2026 if ordered today

• Core Charge $510.00
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Crate Engine, GM 383 Stroker, Marine, 380 HP, Long Block, External/Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP96

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

• Core Charge $510.00
• Drop Ship
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Engine Assembly, Short Block, Assembled, Internal Balance, 1-Piece Rear Main Seal Style, Dart SHP Block, 427 C.I.D., Ford, Each

Part Number: HPE-SP112

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

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SHORT BLOCK ENGINE

Part Number: HPE-SPE3881500

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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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: Jun 24, 2026 if ordered today

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• Free Shipping
• Special Order

Engine, New Short Block, 377 CI,Cast Iron, 4.0 Bore, 3.750 Stroke, Forged H Beam Rod, Forged Aluminum Dish Top Pistons, Internal Balanced, Chevy, Each

Part Number: HPE-SP35NB

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

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• Special Order