Engine Assemblies Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

ATK High Performance Chevy LS 408 Short Blocks SP38-G4-B

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +18cc Dish Pistons, Each

Part Number: HPE-SP38-G4-B

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS 408 Short Blocks SP39-G4-B

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

Part Number: HPE-SP39-G4-B

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS 408 Short Blocks SP40-G4-B

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +29cc Dish Pistons, Each

Part Number: HPE-SP40-G4-B

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP67

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP67

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP68

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP68

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP69

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

Not Yet Reviewed

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ATK High Performance Chevy LS3 415 Short Blocks SP70

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP70

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP71

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP71

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP71-B

SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

Not Yet Reviewed

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ATK High Performance Chevy LS3 415 Short Blocks SP72

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP72

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP74

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP74

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Mopar Replacement Short Block Engines 68312658AA

ENGINE, LONG BLOCK, 2012

Part Number: MOP-68312658AA

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68361456AA

ENGINE, LONG BLOCK, 2016-2022

Part Number: MOP-68361456AA

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68319702AA

ENGINE, LONG BLOCK, 2013-2017

Part Number: MOP-68319702AA

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68487053AA

ENGINE, LONG BLOCK, 2019-2021

Part Number: MOP-68487053AA

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68545286AA

ENGINE, LONG BLOCK, 2019-2023

Part Number: MOP-68545286AA

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Mopar Replacement Short Block Engines 68368820AA

ENGINE, LONG BLOCK, 2017-2025

Part Number: MOP-68368820AA

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Dart Small Block Chevy 427 C.I.D. Short Block Engines 03124272FT

Crate Engine, Short Block, Forged Crank, H-Beam Rods, Forged Pistons, Rings, Chevy, Each

Part Number: DRT-03124272FT

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Mopar Replacement Short Block Engines 68293008AB

ENGINE, LONG BLOCK, 2013-2017

Part Number: MOP-68293008AB

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68293009AB

ENGINE, LONG BLOCK, 2013-2017

Part Number: MOP-68293009AB

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68293006AA

ENGINE, LONG BLOCK, 2011-2012

Part Number: MOP-68293006AA

Not Yet Reviewed

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Mopar Replacement Short Block Engines 68410662AA

ENGINE, LONG BLOCK, 2015-2017

Part Number: MOP-68410662AA

Not Yet Reviewed

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Dart Small Block Ford 347 C.I.D. Short Block Engines 03213472

Dart Small Block Ford 347 C.I.D. Short Block Engines 03213472

Crate Engine, Short Block, Ford 347 cu. in., SHP, Steel Crank, I-Beam Rods, Pistons, Rings, Bearings, Each

Part Number: DRT-03213472

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Dart Small Block Ford 363 C.I.D. Short Block Engines 03243632

Crate Engine, Short Block, Ford 363 cu. in., SHP, Steel Crank, I-Beam Rods, Pistons, Rings, Bearings, Each

Part Number: DRT-03243632

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Dart Small Block Chevy 427 C.I.D. Short Block Engines 03124272DT

Crate Engine, Short Block, Chevy 427 cu. in., SHP, Forged Crank, H-Beam Rods, Dished, Forged Pistons, Rings, Each

Part Number: DRT-03124272DT

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today