$20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: TREAT

$20 Off $250 / $40 Off $500 / $80 Off $1,000
Use Promo Code: TREAT

Free Mount & Balance for Many Wheel & Tire Packages - Contact us for Details!

CHEVROLET Chevy small block Gen III/IV (LS-based engines) ATK High Performance Engines Parts and Accessories

Individual Parts

Results 1 - 25 of 68

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: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Chevy LS 408 Boosted/NOS Short Block 58 Tooth +10cc Dish

Part Number: HPE-SP26-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Engine Assembly, Short Block, LQ9 6.0L, Hypereutectic Flat Top Pistons, Chevy, Small Block LS, Each

Part Number: HPE-SP19-F

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Chevy LS 408 Boosted/NOS Short Block 24 Tooth +18cc Dish

Part Number: HPE-SP38-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 22, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 22, 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: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Cylinder Head, 255cc, Intake Runner, 69 cc Combustion Chamber Volume, Assembled, 2.160 Intake Valve Diameter, Angled Plug, LS, Chevy Each.

Part Number: HPE-2CT13S1

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Short Block Engine, LM7 383, Chevy LS, Forged Crank, Forged Piston, Dish, +15 Piston Head Volume, I-Beam Rods, 6-Bolt Main, Internal Balance, Each

Part Number: HPE-SP78

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Crate Engines, GM 408 LQ4 550 HP Stage 1 Long Block, 6.7L/408, Assembled, Internal Balance, Aluminum Cylinder Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-408BOOSTLB

Not Yet Reviewed

...Loading

This product may not be eligible for select promotional offers

Engine Assembly, Short Block, LQ4, Chevy, Small Block LS, 364, Each

Part Number: HPE-SP19

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP38

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

...Loading

Estimated Ship Date: Nov 3, 2025 if ordered today

This product may not be eligible for select promotional offers

Chevy LM-7/LS 347CI Short Block +3.2cc Flat Top Pistons 24 Tooth

Part Number: HPE-SP75

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Short Block Engine, Chevy LS 408 Short Block, Remanufactured, Assembled, Internal Balance, 9.240 in. Deck Height, Chevrolet, 6.7L, Each

Part Number: HPE-SP36-B

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Crate Engine, GM LQ4, Long Block, Internal Engine Balance, Aluminum Heads, Chevy, 6.0L, LS3 Heads, Each

Part Number: HPE-HP110

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 2, 2026 if ordered today

This product may not be eligible for select promotional offers

Crate Engines, GM 408 LQ4 Stroker 600 HP Stage 1 Long Block, 6.7L/408, Assembled, Internal Balance, Aluminum Heads, Chevrolet, Small Block LS, Each

Part Number: HPE-LS01

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

This product may not be eligible for select promotional offers

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, +29cc Dish Pistons, Each

Part Number: HPE-SP36-G4-B

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 13, 2025 if ordered today

This product may not be eligible for select promotional offers

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, -4cc Flat Top Pistons, Each

Part Number: HPE-SP32-G4-B

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

This product may not be eligible for select promotional offers

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 58 Tooth Reluctor, +10cc Dish Pistons, Each

Part Number: HPE-SP26-G4

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

This product may not be eligible for select promotional offers

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP40

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

This product may not be eligible for select promotional offers

Chevy LM7 383CI Short Block +3cc Flat Top Pistons 24 Tooth

Part Number: HPE-SP80

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

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: Today

...Loading

Estimated Ship Date: Today

This product may not be eligible for select promotional offers

Chevy LS 408 Boosted/NOS Short Block 24 Tooth -10cc Dish

Part Number: HPE-SP37-B

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 2, 2026 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: Jan 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 2, 2026 if ordered today

This product may not be eligible for select promotional offers

Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +10cc Dish Pistons, Each

Part Number: HPE-SP37-G4

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 2, 2026 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: Jan 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 2, 2026 if ordered today

This product may not be eligible for select promotional offers

Cylinder Head, 250cc LS1/LS6, Aluminum, 61cc Chamber, 250cc Runner, 2.080 in. Intake Valve, 1.600 in. Exhaust Valve, 0.650 in. Max Lift, Chevy, Each

Part Number: HPE-HPLS1250

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 2, 2026 if ordered today

Modal Header

Call To Order

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