ATK High Performance Engines Engine Assemblies

Short Block, Chevrolet Big Block Gen V 489/496 Stroker, Internally Balanced, Nodular Iron Crankshaft, +20cc Dome Pistons, Each

Part Number: HPE-SP98

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Estimated Ship Date: Today

• Core Charge $410.00
• Free Shipping

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

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Estimated Ship Date: Today

• Core Charge $560.00
• Free Shipping

Crate Engine, GM 383 Stroker Stage 3, 435 HP, Long Block, External/Internal Engine Balance, Aluminum Heads, EFI, Each

Part Number: HPE-HP36CEFI

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Core Charge $510.00
• Free Shipping

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

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Estimated Ship Date: Today

• Core Charge $510.00
• Free Shipping

CRATE ENGINE, Chev 350 390HP Polished

Part Number: HPE-HP89CPOL

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Estimated Ship Date: Oct 27, 2025 if ordered today

• Core Charge $510.00
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Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP33

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Estimated Ship Date: Nov 17, 2025 if ordered today

• Core Charge $510.00
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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

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Estimated Ship Date: Nov 24, 2025 if ordered today

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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: Nov 26, 2025 if ordered today

• Core Charge $460.00
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SHORT BLOCK ENGINE

Part Number: HPE-SPE3881500

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Estimated Ship Date: Nov 26, 2025 if ordered today

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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

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Estimated Ship Date: Nov 26, 2025 if ordered today

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ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP40

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $410.00
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Engine Assembly, Short Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-SP44

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Estimated Ship Date: Nov 26, 2025 if ordered today

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

Part Number: HPE-SP80

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $285.00
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Crate Engine Ford 302CI Engine 300HP Fox Pan Complete EFI

Part Number: HPE-HP06C-EFI

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $550.00
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CHEV 632 BB COMP/DYNO

Part Number: HPE-HP108C

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Crate Engine, GM LM7, Long Block, Internal Engine Balance, Aluminum Heads, Chevy, 5.3L, AFR Heads, Each

Part Number: HPE-HP116

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $285.00
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Crate Engine, GM LM7, Complete Engine, Internal Engine Balance, Aluminum Heads, Chevy, 5.3L, AFR Heads, Fitech EFI, Each

Part Number: HPE-HP116C-EFI

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $285.00
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Engine Assembly, Stage 3 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block, 347, Each

Part Number: HPE-HP20C

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $550.00
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Engine Assembly, Stage 2 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block, 347, Each

Part Number: HPE-HP20M

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $550.00
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Crate Engine, GM 350, Stage 2, Long Block, Internal/External Engine Balance, Cast Iron Heads, Chevrolet, 350 CID, Each

Part Number: HPE-HP291PM

3.4 out of 5 stars ( 10 )

Estimated Ship Date: Oct 7, 2025 if ordered today

• Core Charge $510.00
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Engine Assembly, Short Block, 58 Tooth Reluctor Wheel, Hypereutectic Pistons, LM7, 330 CID, Chevy, LS, Each

Part Number: HPE-SP115

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $175.00
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Chevy LS 408 Boosted/NOS Short Block 24 Tooth -10cc Dish

Part Number: HPE-SP37-B

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Estimated Ship Date: Nov 26, 2025 if ordered today

• Core Charge $410.00
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Chevy LS 408 Boosted/NOS Short Block 58 Tooth 4cc Flat Top

Part Number: HPE-SP32-B

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Estimated Ship Date: Nov 6, 2025 if ordered today

• Core Charge $410.00
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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

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Estimated Ship Date: Nov 6, 2025 if ordered today

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CRATE ENGINE, Chev 383 415HP Polished

Part Number: HPE-HP94CPOL

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• Core Charge $510.00
• Free Shipping
• Special Order