Make/Model Search
Make/Engine Search

Selected Filters

Availability

ATK High Performance Chevy LS 408 Short Blocks

5.0 out of 5 stars 4 Customer Reviews

These ATK High Performance Chevy LS 408 short blocks are made to handle some serious power. The foundation of any high performance engine is a rock-solid short bloc

These ATK High Performance Chevy LS 408 short blocks are made to handle some serious power. The foundation of any high performance engine is a rock-solid short block, so ATK designed and developed these to be just that. They feature a fully forged, balanced, and blueprinted rotating assembly that is available in a variety of configurations to fit naturally aspirated, nitrous, and forced induction builds, as well as those with 24 and 58-tooth cranks. These ATK High Performance Chevy LS 408 short blocks include the following: * GM LS Iron blocks * Aligned and hone main bores * Manley 4340 forged crankshaft *

These ATK High Performance Chevy LS 408 short blocks are made to handle some serious power. The foundation of any high performance engine is a rock-solid short block, so ATK designed and developed these to be just that. They feature a fully forged, balanced, and blueprinted rotating assembly that is available in a variety of configurations to fit naturally aspirated, nitrous, and forced induction builds, as well as those with 24 and 58-tooth cranks. These ATK High Performance Chevy LS 408 short blocks include the following: * GM LS Iron blocks * Aligned and hone main bores * Manley 4340 forged crankshaft * 4.00 in. stroke * Manley 4340 H-beam connecting rods * Manley forged pistons

Showing In Stock Items. Show All 26 Items.

Results 1 - 5 of 5

ATK High Performance Chevy LS 408 Short Blocks SP26-B

ATK High Performance Chevy LS 408 Short Blocks SP26-B

ATK High Performance Chevy LS 408 Short Blocks SP26-B

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

ATK High Performance Chevy LS 408 Short Blocks SP38-B

ATK High Performance Chevy LS 408 Short Blocks SP38-B

ATK High Performance Chevy LS 408 Short Blocks SP38-B

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: Today

...Loading

Estimated Ship Date: Today

ATK High Performance Chevy LS 408 Short Blocks SP37-B

ATK High Performance Chevy LS 408 Short Blocks SP37-B

ATK High Performance Chevy LS 408 Short Blocks SP37-B

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

Part Number: HPE-SP37-B

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 8, 2025 if ordered today

ATK High Performance Chevy LS 408 Short Blocks SP37-G4

ATK High Performance Chevy LS 408 Short Blocks SP37-G4

ATK High Performance Chevy LS 408 Short Blocks SP37-G4

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: Dec 8, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 8, 2025 if ordered today

ATK High Performance Chevy LS 408 Short Blocks SP40

ATK High Performance Chevy LS 408 Short Blocks SP40

ATK High Performance Chevy LS 408 Short Blocks SP40

ATK High Performance Chevy LS 408 Short Block

Part Number: HPE-SP40

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 8, 2025 if ordered today

1

Page 1 of 1

Modal Header

Call To Order

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