CHEVROLET Chevy small block Gen III/IV (LS-based engines) ATK High Performance Engines Engine Assemblies

Crate Engine, Chevy LQ4 6.0L, Long Block, Internal Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP93

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Today

• Core Charge $560.00
• 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, Short Block, LQ9 6.0L, Hypereutectic Flat Top Pistons, Chevy, Small Block LS, Each

Part Number: HPE-SP19-F

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

• Core Charge $410.00
• 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: Today

• Core Charge $285.00
• 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

Chevy LS 408 Boosted/NOS Short Block 24 Tooth +18cc Dish

Part Number: HPE-SP38-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Core Charge $410.00
• Free Shipping

Short Block Engine, Chevy LS 408 Short Block, Remanufactured, Assembled, Internal Balance, 9.240 in. Deck Height, Chevrolet, 6.7L, Each

Part Number: HPE-SP36-B

Not Yet Reviewed

Estimated Ship Date: Today

• Core Charge $410.00
• 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

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, 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

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

Part Number: HPE-SP37-B

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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

Chevy LS 408 Boosted/NOS Short Block 58 Tooth -18cc Dish

Part Number: HPE-SP31-B

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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

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 2, 2026 if ordered today

• Core Charge $410.00
• 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 2, 2026 if ordered today

• Core Charge $285.00
• Drop Ship
• Free Shipping
• Special Order