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![LS Next Engine Block for GM LS Gen III Engines [4.125 in. Bore, Aluminum]](https://www.jegs.com/images/mini_750/300/301/301-31947211.jpg)
Vehicle Info NeededDARTPART NUMBER: 301-31947211
LS Next Engine Block for GM LS Gen III Engines [4.125 in. Bore, Aluminum]
$7,24999
Ships on Mar 12, 2027
Lowest Price GuaranteeCurrently Unavailable
This product is currently not available. Please call customer service for assistance at 1-800-345-4545.
LS Next Aluminum Bare Engine BlockGM LS Gen III Engines 4.125 in. Bore 9.240 in. Deck Height 4-Bolt Steel Main Caps Skirted Design Sold Individually
Stepping up to a 4.125 in. bore, this LS Next aluminum block gives GM LS Gen III builders extra displacement while trimming roughly 60 lb. off an equivalent iron block.
Dart 31947211 LS Next Engine Block Features:
- Fits GM LS Gen III Engines
- 4.125 in. Bore
- 9.240 in. Deck Height
- 4-Bolt Steel Main Caps
- Skirted Design
- One-Piece Rear Main Seal
- Sold Individually
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeEngine Block
BrandDART
Package Width120.0
Weight120.0 PG
Part CategoryPerformance Parts
Cylinder Bore4.125 in
Main Cap Type4-Bolt Steel
QuantitySold Individually
MaterialAluminum
Part FitmentSemi Universal
Deck Height9.240 in
Skirt DesignSkirted
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
