Shop the CLEARANCE SALE!

Shop the CLEARANCE SALE!

FREE SHIPPING on Orders Over $109!

ATK High Performance Engines Engine Assemblies

Individual Parts

Results 1 - 25 of 84

Crate Engine, Ford 302 Stock Drop In, Long Block, Assembled, External Balance, Cast Iron Cylinder Heads, Each

Part Number: HPE-HP99F

4.1 out of 5 stars ( 29 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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

Part Number: HPE-HP89

4.4 out of 5 stars ( 15 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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

Part Number: HPE-HP98

3.91 out of 5 stars ( 11 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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: Aug 4, 2025 if ordered today

...Loading

Estimated Ship Date: Aug 4, 2025 if ordered today

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Crate Engine, Vortec, GM 350, 315 HP, Long Block, Internal Front/External Rear Engine Balance, Cast Iron Heads, Chevy, 350, Each

Part Number: HPE-HP74

3.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Crate Engine, Mopar 360 Small Block Stage 1, 320 hp, 410 lbs.-ft. Torque, Long Block, Hydraulic Roller, External Engine Balance, Magnum Heads, Each

Part Number: HPE-HP73

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Engine Assembly, Stage 2 Crate Engine, Long Block, Ford, Small Block, 302, Each

Part Number: HPE-HP06M

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

...Loading

Estimated Ship Date: Aug 4, 2025 if ordered today

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Crate Engine, GM 383 Stroker Stage 2, Long Block, Internal/External Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP94M

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Oct 7, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 7, 2025 if ordered today

This product may not be eligible for select promotional offers

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

Part Number: HPE-HP31

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Crate Engine, GM 383 Stroker Stage 1, Long Block, Internal/External Engine Balance, Aluminum Heads, Each

Part Number: HPE-HP94

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Sep 10, 2025 if ordered today

...Loading

Estimated Ship Date: Sep 10, 2025 if ordered today

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Engine Assembly, Stage 2 Crate Engine, Long Block, Ford, Small Block, 302, Each

Part Number: HPE-HP79M

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Jul 14, 2025 if ordered today

...Loading

Estimated Ship Date: Jul 14, 2025 if ordered today

This product may not be eligible for select promotional offers

Engine Assembly, Crate Engine, Short Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-SP35

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Engine Assembly, Stage 1 Crate Engine, Marine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP90

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Jul 21, 2025 if ordered today

...Loading

Estimated Ship Date: Jul 21, 2025 if ordered today

This product may not be eligible for select promotional offers

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: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

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

Part Number: HPE-HP89M

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP36

Not Yet Reviewed

Estimated Ship Date: Jul 21, 2025 if ordered today

...Loading

Estimated Ship Date: Jul 21, 2025 if ordered today

This product may not be eligible for select promotional offers

Crate Engines, Chrysler 5.7L Gen III Hemi 400 HP Long Block, 5.7L/345, Assembled, Aluminum Heads, without MDS, Chrysler, Dodge, Jeep, 5.7L, Each

Part Number: HPE-HP103T

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Short Block, Chevrolet 383 Stroker, Internal/External Balanced, +5cc Flat Top Pistons, Each

Part Number: HPE-SP53

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

This product may not be eligible for select promotional offers

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.