CHEVROLET Chevy big block Mark IV ATK High Performance Engines - Free Shipping on Orders Over $109 at Summit Racing

ATK High Performance GM 350 330 HP Stage 1 Long Block Crate Engines HP291P

Crate Engine, GM 350, Stage 1, Long Block, Internal/External Engine Balance, Cast Iron Heads, Chevy, 350, Each

Part Number: HPE-HP291P

4.07 out of 5 stars ( 14 )

Estimated Ship Date: Today

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ATK High Performance GM 350 Vortec 350 HP Stage 3 Long Block Crate Engines HP32C

Engine Assembly, Stage 3 Crate Engine, Truck, Long Block, 1-Piece Main Seal, Chevy, Small Block, 350, Each

Part Number: HPE-HP32C

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

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ATK High Performance GM 350 Vortec 315 HP Stage 1 Long Block Crate Engines HP74

3.75 out of 5 stars ( 7 )

Estimated Ship Date: Today

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ATK High Performance GM 350 330 HP Stage 3 Long Block Crate Engines HP291PC

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

Part Number: HPE-HP291PC

3.33 out of 5 stars ( 9 )

Estimated Ship Date: Today

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ATK High Performance GM 350 345 HP Stage 3 Long Block Crate Engines HP98C

Crate Engine, Performance, Complete Long Block, Cast Iron Heads, Hydraulic Roller Camshaft, 4-Bolt Main, Internal/External Balance, Chevy, 350, Each

Part Number: HPE-HP98C

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ATK High Performance GM 350 345 HP Stage 2 Long Block Crate Engines HP98M

Crate Engine, Mid Dress Long Block, Cast Iron Heads, Hydraulic Roller Camshaft, Chevy, 350, Each

Part Number: HPE-HP98M

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

ATK High Performance GM 540 660 HP Stage 3 Long Block Crate Engines HP42C

Engine Assembly, Stage 3 Crate Engine, Long Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-HP42C

Not Yet Reviewed

Estimated Ship Date: Today

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ATK High Performance Chevy 632 Short Blocks SP108

Engine Assembly, Short Block, Big Block, 10.3L/632, 4.600 in. Bore, 4.750 in. Stroke, Forged Pistons, Flat Top, Chevy, Big Block Mark IV, Each

Part Number: HPE-SP108

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance GM 350 Vortec 350 HP Stage 1 Long Block Crate Engines HP32

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

Part Number: HPE-HP32

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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ATK High Performance GM 350 Vortec 290 HP Stage 3 Long Block Crate Engines HP99C

Crate Engine, GM 350 Small Block Stage 3, 290 HP, Long Block, External/Internal Engine Balance, Vortec Heads, Carburetor, Each

Part Number: HPE-HP99C

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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ATK High Performance GM 350 Vortec 350 HP Stage 3 Long Block Crate Engines with EFI HP32C-EFI

Crate Engine, GM 350 Small Block Stage 3, 350 HP, Long Block, External/Internal Engine Balance, Vortec Heads, EFI, Each

Part Number: HPE-HP32C-EFI

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ATK High Performance GM 350 Vortec 350 HP Stage 2 Long Block Crate Engines HP32M

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

Part Number: HPE-HP32M

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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ATK High Performance 290cc BBC Aluminum Cylinder Heads HPBBC290

Cylinder Head, 290cc BBC, Aluminum, 113cc Chamber, 294cc Runner, 2.250 in. Intake Valve, 1.880 in. Exhaust Valve, 0.675 in. Max Lift, Chevy, Each

Part Number: HPE-HPBBC290

Not Yet Reviewed

Estimated Ship Date: Oct 31, 2025 if ordered today

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Estimated Ship Date: Oct 31, 2025 if ordered today

ATK High Performance 315cc BBC Aluminum Cylinder Heads HPBBC315

Cylinder Head, 315cc BBC, Aluminum, 120cc Chamber, 315cc Runner, 2.250 in. Intake Valve, 1.880 in. Exhaust Valve, 0.675 in. Max Lift, Chevy, Each

Part Number: HPE-HPBBC315

Not Yet Reviewed

Estimated Ship Date: Oct 31, 2025 if ordered today

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Estimated Ship Date: Oct 31, 2025 if ordered today

ATK High Performance Chevy 540 Dart Race Series Short Blocks SP44

Engine Assembly, Short Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-SP44

Not Yet Reviewed

Estimated Ship Date: Oct 31, 2025 if ordered today

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Estimated Ship Date: Oct 31, 2025 if ordered today

ATK High Performance Chevy 598 Dart Race Series Short Blocks SP45

Engine Assembly, Short Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-SP45

Not Yet Reviewed

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ATK High Performance GM 350 330 HP Stage 2 Long Block Crate Engines HP291PM

Crate Engine, GM 350, Stage 2, Long Block, Internal/External Engine Balance, Cast Iron Heads, Chevrolet, 350 CID, Each

Part Number: HPE-HP291PM

3.4 out of 5 stars ( 10 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

ATK High Performance Pro Street 632 800 HP Dressed Crate Engines HP108C

CHEV 632 BB COMP/DYNO

Part Number: HPE-HP108C

Not Yet Reviewed

Estimated Ship Date: Oct 2, 2025 if ordered today

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Estimated Ship Date: Oct 2, 2025 if ordered today

ATK High Performance GM 540 660 HP Stage 1 Long Block Crate Engines HP42

Engine Assembly, Stage 1 Crate Engine, Long Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-HP42

Not Yet Reviewed

Estimated Ship Date: Oct 29, 2025 if ordered today

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Estimated Ship Date: Oct 29, 2025 if ordered today

ATK High Performance GM 540 660 HP Stage 2 Long Block Crate Engines HP42M

Engine Assembly, Stage 2 Crate Engine, Long Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-HP42M

Not Yet Reviewed

Estimated Ship Date: Oct 29, 2025 if ordered today

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Estimated Ship Date: Oct 29, 2025 if ordered today

CHEVROLET Chevy big block Mark IV ATK High Performance Engines Parts and Accessories