Shop the CLEARANCE SALE!

Shop the CLEARANCE SALE!

FREE SHIPPING on Orders Over $109!

ATK High Performance Engines Parts and Accessories

Individual Parts

Results 101 - 125 of 219

Engine, New Short Block, 377 CI,Cast Iron, 4.0 Bore, 3.750 Stroke, Forged H Beam Rod, Forged Aluminum Flat Top Pistons, Internal Balanced, Chevy, Each

Part Number: HPE-SP53NB

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

Short Block, Chevrolet Big Block Gen V 489/496 Stroker, Internally Balanced, Nodular Iron Crankshaft, +20cc Dome Pistons, Each

Part Number: HPE-SP98

Not Yet Reviewed

Estimated Ship Date: Monday 7/14/2025

...Loading

Estimated Ship Date: Monday 7/14/2025

Engine Assembly, Crate Engine, TBI Truck Stroker, Long Block, 1-Piece Main Seal, Chevy, 383, Each

Part Number: HPE-HP05

1.0 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, Stage 3 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP36C

4.0 out of 5 stars ( 4 )

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, Long Block, 1-Piece Main Seal, Chevy, Small Block, 383, Each

Part Number: HPE-HP33C

Not Yet Reviewed

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 Engines, GM 365 LQ4 550 HP Stage 1 Long Block, 6.0L/364, Assembled, Internal Balance, Aluminum Cylinder Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LQ4-LB-1

Not Yet Reviewed

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, Short Block, Stroker, 1-Piece Main Seal, Mopar, Small Block Magnum, 408, Each

Part Number: HPE-SP57

Not Yet Reviewed

Estimated Ship Date: Sep 18, 2025 if ordered today

...Loading

Estimated Ship Date: Sep 18, 2025 if ordered today

This product may not be eligible for select promotional offers

Engine Assembly, Stage 2 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block, 347, Each

Part Number: HPE-HP20M

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

Crate Engine, GM LM7, Long Block, Internal Engine Balance, Aluminum Heads, Chevy, 5.3L, AFR Heads, Each

Part Number: HPE-HP116-G4

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

Crate Engine, GM LM7, Complete Engine, Internal Engine Balance, Aluminum Heads, Chevy, 5.3L, AFR Heads, Fitech EFI, Each

Part Number: HPE-HP116C-EFI

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

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 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

Cylinder Head, 260cc LS3, CNC Ported, 6 Bolt, 70cc Chamber, 260cc Runner, 2.165 in. Intake , 1.600 in. Exhaust, 0.650 in. Max Lift, Chevy, Each

Part Number: HPE-HPLS3260

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

Engine Assembly, Short Block, LT1/LT4, 6.8L/416, 4.065 in. Bore, 4.000 in. Stroke, Forged Pistons, Two Valve Relief, 58 Tooth, Chevy, Gen V, LT, Each

Part Number: HPE-SP105

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

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

Part Number: HPE-SP115

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

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

Part Number: HPE-SP44

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

SHORT BLOCK ENGINE

Part Number: HPE-SPE3881500

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

This product may not be eligible for select promotional offers

Engine Assembly, Stage 3 Crate Engine, Long Block, 1-Piece Main Seal, Chevy, Small Block, LS, 408, Each

Part Number: HPE-LS01C

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

...Loading

Estimated Ship Date: Sep 22, 2025 if ordered today

This product may not be eligible for select promotional offers

Crate Engine, GM LM7, Long Block, Internal Engine Balance, Aluminum Heads, Chevy, 5.3L, AFR Heads, Each

Part Number: HPE-HP116

Not Yet Reviewed

Estimated Ship Date: Sep 24, 2025 if ordered today

...Loading

Estimated Ship Date: Sep 24, 2025 if ordered today

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-HP33

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 6, 2025 if ordered today

This product may not be eligible for select promotional offers

CRATE ENGINE

Part Number: HPE-HPLH6N

Not Yet Reviewed

Estimated Ship Date: Sep 25, 2025 if ordered today

...Loading

Estimated Ship Date: Sep 25, 2025 if ordered today

This product may not be eligible for select promotional offers

Crate Engine, Long Block, Aluminum Heads, Cast Iron Block, VVT Lock Out, Tuner, Ford Modular, 5.4L/330, Each

Part Number: HPE-HPDFDV

Not Yet Reviewed

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

Cylinder Head, 185cc SBF, Aluminum, 58cc Chamber, 190cc Runner, 2.020 in. Intake Valve, 1.600 in. Exhaust Valve, 0.625 in. Max Lift, Ford, Each

Part Number: HPE-HPSBF185

Not Yet Reviewed

Estimated Ship Date: Oct 9, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 9, 2025 if ordered today

Engine Assembly, Stage 3 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block, 347, Each

Part Number: HPE-HP20C

Not Yet Reviewed

Estimated Ship Date: Oct 9, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 9, 2025 if ordered today

This product may not be eligible for select promotional offers

HP ENGINE

Part Number: HPE-SP100

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 6, 2025 if ordered today

This product may not be eligible for select promotional offers

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 8, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 8, 2025 if ordered today

Modal Header

Call To Order

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