Availability
Crate Engines, Short Blocks, Engine & Transmission Combos
Engine Assembly, Short Block, Chevy, Small Block LS, 408, Each
Part Number: HPE-SP26
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
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: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
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: Jul 15, 2026 if ordered today
Estimated Ship Date: Jul 15, 2026 if ordered today
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: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
ATK High Performance Chevy LS 408 Short Block
Part Number: HPE-SP36
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
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: Jul 7, 2026 if ordered today
Estimated Ship Date: Jul 7, 2026 if ordered today
Engine Assembly, Stage 1 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block Windsor, 408, Each
Part Number: HPE-HP81
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +4cc Flat Top Pistons, Each
Part Number: HPE-SP39-G4-B
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, +18cc Dish Pistons, Each
Part Number: HPE-SP31-G4-B
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 58 Tooth Reluctor, +18cc Dish Pistons, Each
Part Number: HPE-SP31-G4
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Engine Assembly, Stage 2 Crate Engine, Long Block, 1-Piece Main Seal, Ford, Small Block Windsor, 408, Each
Part Number: HPE-HP81M
Not Yet Reviewed
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +10cc Dish Pistons, Each
Part Number: HPE-SP37-G4-B
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +18cc Dish Pistons, Each
Part Number: HPE-SP38-G4-B
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Chevy LS 408 Boosted/NOS Short Block 58 Tooth 4cc Flat Top
Part Number: HPE-SP32-B
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 58 Tooth Reluctor, +29cc Dish Pistons, Each
Part Number: HPE-SP36-G4
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
ATK High Performance Chevy LS 408 Short Block
Part Number: HPE-SP39
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Chevy LS 408 Boosted/NOS Short Block 24 Tooth -10cc Dish
Part Number: HPE-SP37-B
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 58 Tooth Reluctor, +10cc Dish Pistons, Each
Part Number: HPE-SP26-G4-B
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
427 c.i. Standard Edition Builder Series, Carbureted, 727 Automatic Transmission w/ Black Pulley Kit. Incl. 30 month/50,000 warranty & Dyno
Part Number: MLL-BC408KB727
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, Nitrous/Boost, 24 Tooth Reluctor, +29cc Dish Pistons, Each
Part Number: HPE-SP40-G4-B
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
Ford Small Block Compatible 408 c.i. Engine - 450 Horsepower - Long Block - Rear Sump
Part Number: MLL-BPF4089RCT
Not Yet Reviewed
Estimated Ship Date: Jun 4, 2026 if ordered today
Estimated Ship Date: Jun 4, 2026 if ordered today
Ford Small Block Compatible 408 c.i. Engine - 450 Horsepower - Base Dressed - Rear Sump - Carbureted
Part Number: MLL-BPF4089RCTC
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +18cc Dish Pistons, Each
Part Number: HPE-SP38-G4
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Short Block, Chevrolet LS Gen IV 408 Stroker, Internally Balanced, 24 Tooth Reluctor, +29cc Dish Pistons, Each
Part Number: HPE-SP40-G4
Not Yet Reviewed
Estimated Ship Date: Jun 30, 2026 if ordered today
Estimated Ship Date: Jun 30, 2026 if ordered today
Ford Small Block Compatible 408 c.i. Engine - 450 Horsepower - Base Dressed - Rear Sump - Fuel Injected
Part Number: MLL-BPF4089RCTF
Not Yet Reviewed
Estimated Ship Date: Jun 4, 2026 if ordered today
Estimated Ship Date: Jun 4, 2026 if ordered today
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