ATK High Performance Engines Engines & Components

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: Today

• Core Charge $285.00
• Free Shipping

Short Block, Crate Engine, Cast, 1-Pc. Main Seal, Forged Internals, 4-Bolt Main, Internal/External Balance, 9.025 in. DH, Chevy, Small Block, 383,Each

Part Number: HPE-SP35

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Core Charge $510.00
• Free Shipping

Engine Assembly, Short Block, LQ4, Chevy, Small Block LS, 364, Each

Part Number: HPE-SP19

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Core Charge $410.00
• Free Shipping

Crate Engine, Chrysler 408 A Stroker, Short Block, Internal Balance, Mopar, Magnum, Each

Part Number: HPE-SP61

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

• Core Charge $260.00
• Free Shipping

Engine Assembly, Short Block, 24 Tooth Reluctor Wheel, Hypereutectic Pistons, LM7, 330 CID, Chevy, LS, Each

Part Number: HPE-SP109

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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

Crate Engine, GM 350, Stage 3, Long Block, Internal/External Engine Balance, Cast Iron Heads, Chevy, 350, Each

Part Number: HPE-HP291PC

3.63 out of 5 stars ( 8 )

Estimated Ship Date: Today

• Core Charge $510.00
• Free Shipping

Crate Engine, GM 5.3L, LM7, 385 HP, Long Block, Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP97

4.93 out of 5 stars ( 15 )

Estimated Ship Date: Today

• Core Charge $285.00
• Free Shipping

Engine Assembly, Stage 2 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 350, Each

Part Number: HPE-HP89M

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Core Charge $510.00
• Free Shipping

Crate Engine, Long Block, TBI Stroker, 1-Piece Rear Main Seal, Hydraulic Roller, 9.5:1 Compression Ratio, Cast Iron, Chevy, 383, Truck, Each

Part Number: HPE-HP05

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Core Charge $510.00
• Free Shipping

CRATE ENGINE, Mopar 360 Mag 350+HP

Part Number: HPE-HP113

Not Yet Reviewed

Estimated Ship Date: Today

• Core Charge $370.00
• Free Shipping

Chevy LM-7/LS 347CI Short Block +3.2cc Flat Top Pistons 24 Tooth

Part Number: HPE-SP75

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Core Charge $285.00
• Free Shipping

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: Today

• Core Charge $460.00
• Free Shipping

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP40

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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

Engine Assembly, Stage 1 Crate Engine, Long Block, Ford, Small Block, 302, Each

Part Number: HPE-HP08

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

• Core Charge $550.00
• Drop Ship
• Free Shipping
• Special Order

Crate Engine, Mopar 360 Small Block Stage 2, 320 HP, Long Block, External Engine Balance, Magnum Heads, Each

Part Number: HPE-HP73M

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Core Charge $260.00
• Drop Ship
• Free Shipping
• 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: Feb 6, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Feb 2, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Assembly, Short Block, Chevy, Small Block LS, 408, Each

Part Number: HPE-SP26

Not Yet Reviewed

Estimated Ship Date: Today

• Core Charge $410.00
• Free Shipping

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +10cc Dish Pistons, Each

Part Number: HPE-SP37-G4

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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

Engine Assembly, Short Block, Stroker, 1-Piece Main Seal, Mopar, Small Block Magnum, 408, Each

Part Number: HPE-SP57

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Core Charge $370.00
• Drop Ship
• Free Shipping
• Special Order

Chevy LM-7/LS 347CI Short Block +11cc Dished Pistons 24 Tooth

Part Number: HPE-SP76

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Core Charge $285.00
• Drop Ship
• 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: Feb 6, 2026 if ordered today

• Core Charge $460.00
• Drop Ship
• 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: Feb 5, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order