Availability
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: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 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-SP45
Not Yet Reviewed
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP67
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP68
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP69
Not Yet Reviewed
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP70
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP71
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
This product may not be eligible for select promotional offers
SHORT BLOCK, LS3 415CI Boost Shortblock 58T
Part Number: HPE-SP71-B
Not Yet Reviewed
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP72
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
This product may not be eligible for select promotional offers
ATK High Performance Chevy LS3 415 Short Block
Part Number: HPE-SP74
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Black Pulley Kit
Part Number: MLL-BLS4273KBT56
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission. w/ Black Pulley Kit
Part Number: MLL-BLS4273KBTKX
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission w/ Polished Pulley Kit
Part Number: MLL-BLS4273KT56
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission
Part Number: MLL-BLS4273T56
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission
Part Number: MLL-BLS37634L7
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission
Part Number: MLL-BLS37684L7
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission
Part Number: MLL-BLS42784L7
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, T56 Manual Transmission
Part Number: MLL-BLS4278T56
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Supercharged, T56 Manual Transmission
Part Number: MLL-S0025
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Truck Edition Iron Block, Fuel Injected, 4L65/70E Automatic Transmission 4WD Ready
Part Number: MLL-BLS37684X4
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Truck Edition Iron Block, Fuel Injected, 4L65/70E Automatic Transmission 4WD Ready w/ Black Pulley Kit
Part Number: MLL-BLS3768KB4X4
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission
Part Number: MLL-BLS3768TKX
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, 4L65/70E Automatic Transmission w/ Polished Pulley Kit
Part Number: MLL-BLS3768K4L7
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Supercharged, T56 Manual Transmission w/ Black Pulley Kit
Part Number: MLL-S0023
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
This product may not be eligible for select promotional offers
Engine 376 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission w/ Black Pulley Kit
Part Number: MLL-BLS3768KBTKX
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
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.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
