Chevy Gen 3 & Gen 4 LS Crate Engines | Summit Racing (2024)

Table of Contents
5.3L and 5.7L LS Crate Engines 5.3L and 5.7L LS Crate Engines 6.0L LS Crate Engines 6.2L LS Crate Engines 7.0L+ LS Crate Engines Summit Racing™ Chevy LS 5.3L 450HP Long Block Crate Engines SUM-150153 Summit Racing™ Chevy LS 5.3L 450HP Long Block Crate Engines SUM-150153 Chevrolet Performance LS3 6.2L 376 C.I.D 525 HP Engine Assemblies 19435104 Chevrolet Performance LS3 6.2L 376 C.I.D 525 HP Engine Assemblies 19435104 Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Fully Dressed Long Block Crate Engines 19435098 Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Fully Dressed Long Block Crate Engines 19435098 Chevrolet Performance LS3 6.2L 376 C.I.D 495 HP Engine Assemblies 19435100 Chevrolet Performance LS3 6.2L 376 C.I.D 495 HP Engine Assemblies 19435100 Chevrolet Performance 7.0L 427 C.I.D. LS7 Long Block Crate Engines 19303238 Chevrolet Performance 7.0L 427 C.I.D. LS7 Long Block Crate Engines 19303238 Chevrolet Performance LSX 454 Long Block Crate Engines 19417357 Chevrolet Performance LSX 454 Long Block Crate Engines 19417357 Chevrolet Performance Crate Engines 19434650 Chevrolet Performance Crate Engines 19434650 VEGE Remanufactured Long Block Crate Engines DCT20 VEGE Remanufactured Long Block Crate Engines DCT20 VEGE Remanufactured Long Block Crate Engines VCTF4WD VEGE Remanufactured Long Block Crate Engines VCTF4WD VEGE Remanufactured Long Block Crate Engines DCTF VEGE Remanufactured Long Block Crate Engines DCTF VEGE Remanufactured Long Block Crate Engines VCT84WD VEGE Remanufactured Long Block Crate Engines VCT84WD VEGE Remanufactured Long Block Crate Engines VCTC2WD VEGE Remanufactured Long Block Crate Engines VCTC2WD VEGE Remanufactured Long Block Crate Engines DCTC VEGE Remanufactured Long Block Crate Engines DCTC BluePrint Engines Chevy LS 376 C.I.D. 530HP EFI Retrofit Dressed Long Block Crate Engines PSLS3760CTF BluePrint Engines Chevy LS 376 C.I.D. 530HP EFI Retrofit Dressed Long Block Crate Engines PSLS3760CTF Chevrolet Performance CPP LSX 376-B15 Long Block Crate Engines 19417356 Chevrolet Performance CPP LSX 376-B15 Long Block Crate Engines 19417356 BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Drop-In Base Long Block Crate Engines PSLS4271CT BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Drop-In Base Long Block Crate Engines PSLS4271CT BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Retrofit Dressed Long Block Crate Engines PSLS4272CTF VEGE Remanufactured Long Block Crate Engines DCX4 VEGE Remanufactured Long Block Crate Engines DCX4 BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI Retrofit Fully Dressed Long Block Crate Engines PSLS3760CTFK BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI Retrofit Fully Dressed Long Block Crate Engines PSLS3760CTFK Chevrolet Performance LS3 6.2L E-Rod Long Block Crate Engines 19421057 Chevrolet Performance LS3 6.2L E-Rod Long Block Crate Engines 19421057 BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625 HP EFI Fully Dressed Long Block Crate Engines PSLS4272CTFK BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625 HP EFI Fully Dressed Long Block Crate Engines PSLS4272CTFK BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Retrofit Dressed Long Block Crate Engines PSLS4272CTF BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Retrofit Dressed Long Block Crate Engines PSLS4272CTF BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI LS3-Style Long Block Crate Engines PSLS3760CTFKB BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI LS3-Style Long Block Crate Engines PSLS3760CTFKB BluePrint Engines Chevy LS 376 C.I.D. 520 HP Long Block Crate Engines PSLS3760CT BluePrint Engines Chevy LS 376 C.I.D. 520 HP Long Block Crate Engines PSLS3760CT BluePrint Engines Chevy LS 376 C.I.D. 549 HP EFI LS3-Style Long Block Crate Engines PSLS3760EFI BluePrint Engines Chevy LS 376 C.I.D. 549 HP EFI LS3-Style Long Block Crate Engines PSLS3760EFI VEGE Remanufactured Long Block Crate Engines VCRE VEGE Remanufactured Long Block Crate Engines VCRE References

Gen 3 LS crate engines and Gen 4 LS crate engines are a great alternative to rebuilding your own engine or pulling an LS long block from the local scrapyard.

LS engines...

Gen 3 LS crate engines and Gen 4 LS crate engines are a great alternative to rebuilding your own engine or pulling an LS long block from the local scrapyard.

LS engines can be swapped anywhere that a Gen 1 or Gen 2 small block Chevy (SBC) engine will fit. The engine blocks, available in both aluminum and cast iron, can easily handle over 800 horsepower.

Due to LS engines’ high degree of parts interchangeability and excellent aftermarket support, every engine in the LS engine family—even the humble cast iron truck motors—have the potential to make more power than a supercharged LS9.

5.3L and 5.7L LS Crate Engines

Gen 3 LS crate engines and Gen 4 LS crate engines are a great alternative to rebuilding your own engine or pulling an LS long block from the local scrapyard.

LS engines can be swapped anywhere that a Gen 1 or Gen 2 small block Chevy (SBC) engine will fit. The engine blocks, available in both aluminum and cast iron, can easily handle over 800 horsepower.

Due to LS engines’ high degree of parts interchangeability and excellent aftermarket support, every engine in the LS engine family—even the humble cast iron truck motors—have the potential to make more power than a supercharged LS9.

5.3L and 5.7L LS Crate Engines

  • The 5.7L Gen 3 LS1 started it all in 1997. With an aluminum block, 2.000 in. intake valves, and 67cc combustion chambers, the stock LS1 could make 350 hp. The upgraded LS6 managed another 50 hp thanks mostly to a hotter cam and the 243 heads with smaller combustion chambers and more port volume.
  • The 5.3L Gen 3 iron block LM7 is hard to beat if you’re on a budget. It’s no slouch at close to 300 hp stock. Plus, it can be stroked to 383 c.i.d. and upgraded with many LS1/LS6 parts. You will find the LM7 under the hood of many boosted LS swaps.

6.0L LS Crate Engines

  • The 6.0L Gen 4 aluminum block LS2 makes about 400 hp stock and uses the same cathedral port heads as the LS6.
  • The LQ4 is a 6.0L Gen III engine with a cast iron block. It makes over 300 hp stock. Like the LM7, it’s great for budget builds and boost. LQ4s can be stroked to 408 c.i.d and upgraded with many LS3 parts.

6.2L LS Crate Engines

  • The 6.2L Gen 4 aluminum block LS3 got new rectangle port heads, 2.165 in. intake valves and 70cc combustion chambers. A stock LS3 churns out over 425 hp stock and is commonly stroked to 415 or 416 c.i.d.

7.0L+ LS Crate Engines

  • With a 4.000 in. stroke GM managed to get 427 c.i.d. out of the aluminum block LS7. They didn’t stop there. A forged crank, titanium rods, 2.200 in. titanium intake valves, square port CNC-ported heads, and dry sump oiling is good for over 500 hp stock.
  • Chevrolet Performance saw a need for big-displacement cast iron blocks so they brought us the LSX Bowtie Block. It’s similar to the LS7 block with some extra material in high stress areas. Available in 376 and 454 c.i.d. and capable of even more, crate engines with these blocks can make up to 2,000 hp on nitrous or boost.

Thanks to increased distance between the cam and crankshaft centerline, LS engines are practically made for stroker cranks. Improvements from the original SBC to LS didn’t stop with the block. LS cylinder heads are optimized for flow with cathedral shaped, symmetrical intake ports and low valve angles.

While there were many small changes across different models, some of the biggest came with the transition from the Gen 3 to the Gen 4. The Gen 4’s reluctor wheel increased from 24 to 58 teeth. There are provisions for Active Fuel Management (AFM) and Variable Valve Timing (VVT).

Whether you’re looking for a bare long block or a turnkey option complete with fuel injection or a carburetor, Summit Racing offers crate engines from Mast, Chevrolet Performance, BluePrint Engines, Edelbrock, ATK, and more.

Results 1 - 25 of 113

Summit Racing™ Chevy LS 5.3L 450HP Long Block Crate Engines SUM-150153

Summit Racing™ Chevy LS 5.3L 450HP Long Block Crate Engines SUM-150153

Crate Engine, Long Block, Chevy LS, 5.3L/323, Gen 3, 24x Crank Reluctor, Aluminum Heads, Small Block, Each

Part Number: SUM-150153

4.32 out of 5 stars ( 34 )

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Chevrolet Performance LS3 6.2L 376 C.I.D 525 HP Engine Assemblies 19435104

Chevrolet Performance LS3 6.2L 376 C.I.D 525 HP Engine Assemblies 19435104

Crate Engine, GM 6.2L, LS3, 525 HP, Internal Engine Balance, Aluminum Block and Heads, Each

Part Number: NAL-19435104

Not Yet Reviewed

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Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Fully Dressed Long Block Crate Engines 19435098

Chevrolet Performance LS3 6.2L 376 C.I.D 430 HP Fully Dressed Long Block Crate Engines 19435098

Crate Engine, GM 6.2L, LS3, 430 HP, Internal Engine Balance, Aluminum Block and Heads, Each

Part Number: NAL-19435098

Not Yet Reviewed

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Chevrolet Performance LS3 6.2L 376 C.I.D 495 HP Engine Assemblies 19435100

Chevrolet Performance LS3 6.2L 376 C.I.D 495 HP Engine Assemblies 19435100

Crate Engine, GM 6.2L, LS3, 495 HP, Internal Engine Balance, Aluminum Block and Heads, Each

Part Number: NAL-19435100

Not Yet Reviewed

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Chevrolet Performance 7.0L 427 C.I.D. LS7 Long Block Crate Engines 19303238

Chevrolet Performance 7.0L 427 C.I.D. LS7 Long Block Crate Engines 19303238

Crate Engines, 7.0L 427 C.I.D. LS7 Long Block, Assembled, Internal Balance, Aluminum Block and Cylinder Heads, Chevrolet, 7.0L LS7, Each

Part Number: NAL-19303238

Not Yet Reviewed

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Chevrolet Performance LSX 454 Long Block Crate Engines 19417357

Chevrolet Performance LSX 454 Long Block Crate Engines 19417357

Crate Engine, Long Block, LSX454, Hydraulic Roller Tappet, 1-Piece Rear Main, Orange Valve Covers, Gen III/IV LS, Chevy, Each

Part Number: NAL-19417357

4.0 out of 5 stars ( 1 )

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Chevrolet Performance Crate Engines 19434650

Chevrolet Performance Crate Engines 19434650

Crate Engine, GM 6.0L, 364, Internal Engine Balance, Aluminum Heads, Each

Part Number: NAL-19434650

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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VEGE Remanufactured Long Block Crate Engines DCT20

VEGE Remanufactured Long Block Crate Engines DCT20

Crate Engine, Remanufactured, Long Block, Assembled, Chevrolet, GMC, 5.3L/325, Each

Part Number: VRE-DCT20

4.0 out of 5 stars ( 1 )

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VEGE Remanufactured Long Block Crate Engines VCTF4WD

VEGE Remanufactured Long Block Crate Engines VCTF4WD

Crate Engine, Remanufactured, Long Block, Assembled, GM, 6.0L, 4WD, Each

Part Number: VRE-VCTF4WD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 8, 2024 if ordered today

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Estimated Ship Date: Aug 8, 2024 if ordered today

VEGE Remanufactured Long Block Crate Engines DCTF

VEGE Remanufactured Long Block Crate Engines DCTF

Crate Engine, Remanufactured, Long Block, Assembled, GM, 6.0L, Each

Part Number: VRE-DCTF

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2024 if ordered today

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Estimated Ship Date: Aug 8, 2024 if ordered today

VEGE Remanufactured Long Block Crate Engines VCT84WD

VEGE Remanufactured Long Block Crate Engines VCT84WD

Crate Engine, Remanufactured, Long Block, Assembled, GM, 5.3L, 4WD, Each

Part Number: VRE-VCT84WD

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Aug 8, 2024 if ordered today

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Estimated Ship Date: Aug 8, 2024 if ordered today

VEGE Remanufactured Long Block Crate Engines VCTC2WD

VEGE Remanufactured Long Block Crate Engines VCTC2WD

Crate Engine, Remanufactured, Long Block, Chevrolet, GMC, 4.8L/294, Each

Part Number: VRE-VCTC2WD

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2024 if ordered today

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Estimated Ship Date: Aug 8, 2024 if ordered today

VEGE Remanufactured Long Block Crate Engines DCTC

VEGE Remanufactured Long Block Crate Engines DCTC

Crate Engine, Remanufactured, Long Block, Assembled, GM, 4.8L, Each

Part Number: VRE-DCTC

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2024 if ordered today

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Estimated Ship Date: Aug 8, 2024 if ordered today

BluePrint Engines Chevy LS 376 C.I.D. 530HP EFI Retrofit Dressed Long Block Crate Engines PSLS3760CTF

BluePrint Engines Chevy LS 376 C.I.D. 530HP EFI Retrofit Dressed Long Block Crate Engines PSLS3760CTF

Crate Engine, Base Long Block, GM LS Series 376 C.I.D., Internal Engine Balance, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-PSLS3760CTF

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Chevrolet Performance CPP LSX 376-B15 Long Block Crate Engines 19417356

Chevrolet Performance CPP LSX 376-B15 Long Block Crate Engines 19417356

Crate Engine, LSX376-B15, Forged Internals, Internally Balanced, 6-Bolt Mains, 58x Reluctor, 6.2L, GenIV, LSX, Chevy, Each

Part Number: NAL-19417356

Not Yet Reviewed

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BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Drop-In Base Long Block Crate Engines PSLS4271CT

BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Drop-In Base Long Block Crate Engines PSLS4271CT

Crate Engine, LS Crate Motor, Base Long Block, LS3 Stroker Motor, 58x Gen 4 Drop In Replacement Crate Engine

Part Number: MLL-PSLS4271CT

Not Yet Reviewed

Estimated Ship Date: Aug 30, 2024 if ordered today

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Estimated Ship Date: Aug 30, 2024 if ordered today

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BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Retrofit Dressed Long Block Crate Engines PSLS4272CTF

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VEGE Remanufactured Long Block Crate Engines DCX4

VEGE Remanufactured Long Block Crate Engines DCX4

Crate Engine, Remanufactured, Long Block, Assembled, GM, 5.3L, Each

Part Number: VRE-DCX4

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 8, 2024 if ordered today

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Estimated Ship Date: Aug 8, 2024 if ordered today

BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI Retrofit Fully Dressed Long Block Crate Engines PSLS3760CTFK

BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI Retrofit Fully Dressed Long Block Crate Engines PSLS3760CTFK

Crate Engine, Fully Dressed Long Block, GM LS Series 376 C.I.D., Internal Engine Balance, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-PSLS3760CTFK

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Sep 4, 2024 if ordered today

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Estimated Ship Date: Sep 4, 2024 if ordered today

Chevrolet Performance LS3 6.2L E-Rod Long Block Crate Engines 19421057

Chevrolet Performance LS3 6.2L E-Rod Long Block Crate Engines 19421057

Crate Engine, GM 6.2L, 430 HP, LS3 E-Rod, Internal Engine Balance, Aluminum Heads, Each

Part Number: NAL-19421057

Not Yet Reviewed

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BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625 HP EFI Fully Dressed Long Block Crate Engines PSLS4272CTFK

BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625 HP EFI Fully Dressed Long Block Crate Engines PSLS4272CTFK

Crate Engines, Pro Series Chevy LS 427 C.I.D. 625 HP EFI Fully Dressed Long Block, 7.0L/427, Assembled, Throttle Body, Chevrolet, Small Block LS, Each

Part Number: MLL-PSLS4272CTFK

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BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Retrofit Dressed Long Block Crate Engines PSLS4272CTF

BluePrint Engines Pro Series Chevy LS 427 C.I.D. 625HP EFI Retrofit Dressed Long Block Crate Engines PSLS4272CTF

Crate Engine, Longblock, Chevy LS, 427 Stroker LS Motor, Forged Crankshaft, Forged Pistons, 58X Reluctor

Part Number: MLL-PSLS4272CTF

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI LS3-Style Long Block Crate Engines PSLS3760CTFKB

BluePrint Engines Chevy LS 376 C.I.D. 530 HP EFI LS3-Style Long Block Crate Engines PSLS3760CTFKB

Crate Engine, Base Long Block, GM LS Series 376 C.I.D., Internal Engine Balance, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-S0001

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BluePrint Engines Chevy LS 376 C.I.D. 520 HP Long Block Crate Engines PSLS3760CT

BluePrint Engines Chevy LS 376 C.I.D. 520 HP Long Block Crate Engines PSLS3760CT

Crate Engine, Long Block, GM LS Series 376 C.I.D., 520 HP, Internal Balance, Aluminum Cylinder Heads, Chevy, 6.2L LS, Each

Part Number: MLL-PSLS3760CT

5.0 out of 5 stars ( 1 )

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BluePrint Engines Chevy LS 376 C.I.D. 549 HP EFI LS3-Style Long Block Crate Engines PSLS3760EFI

BluePrint Engines Chevy LS 376 C.I.D. 549 HP EFI LS3-Style Long Block Crate Engines PSLS3760EFI

New 6.2L LS Aluminum block Dressed Longblock with Fuel Injection

Part Number: MLL-PSLS3760EFI

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VEGE Remanufactured Long Block Crate Engines VCRE

VEGE Remanufactured Long Block Crate Engines VCRE

Crate Engine, Remanufactured, Long Block, Chevrolet, GMC, Workhorse, 4.8L/294, Each

Part Number: VRE-VCRE

Not Yet Reviewed

Estimated Ship Date: Aug 7, 2024 if ordered today

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Estimated Ship Date: Aug 7, 2024 if ordered today

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Chevy Gen 3 & Gen 4 LS Crate Engines | Summit Racing (2024)

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