Short Block Engines - Chevy LS Crate Engine Family - Internal Engine Balance - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $125 at Summit Racing

ATK High Performance Chevy LQ9 6.0L Short Blocks SP19-F

Engine Assembly, Short Block, LQ9 6.0L, Hypereutectic Flat Top Pistons, Chevy, Small Block LS, Each

Part Number: HPE-SP19-F

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

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ATK High Performance Chevy LM7 5.3L Short Blocks SP109

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

Part Number: HPE-SP109

Not Yet Reviewed

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ATK High Performance Chevy LQ4 6.0L Short Blocks SP19

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

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ATK High Performance Chevy LM7 5.3L GEN IV Short Blocks SP115

Engine Assembly, Short Block, 58 Tooth Reluctor Wheel, Hypereutectic Pistons, LM7, 330 CID, Chevy, LS, Each

Part Number: HPE-SP115

Not Yet Reviewed

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ATK High Performance Chevy LM7 383 Short Blocks SP78

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

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ATK High Performance Chevy LS 408 Short Blocks SP39-G4

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: Jul 6, 2026 if ordered today

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Estimated Ship Date: Jul 6, 2026 if ordered today

ATK High Performance Chevy LS 408 Short Blocks SP38-B

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

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ATK High Performance Chevy LS 408 Short Blocks SP26-B

Chevy LS 408 Boosted/NOS Short Block 58 Tooth +10cc Dish

Part Number: HPE-SP26-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATK High Performance Chevy LS 408 Short Blocks SP38

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP38

Not Yet Reviewed

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ATK High Performance Chevy LS 364 Short Blocks SP93-G4

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: Jul 3, 2026 if ordered today

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Estimated Ship Date: Jul 3, 2026 if ordered today