Description
Building a high-displacement LS engine demands a foundation that can handle increased bore diameters and sustained power delivery. This aluminum LS block gives you the structural integrity and lightweight advantage you need to support aggressive builds without sacrificing reliability. Whether you’re developing a street terror or competition powerplant, starting with quality casting ensures every dollar spent downstream delivers real performance gains.
- Engine: LS-Series
- Block Type: Bare
- Bore: 4.120 inches
- Deck Height: 9.250 inches
- Main Journals: Standard
- Main Bolts: 6-Bolt
- Seal Style: 1-Piece
- Head Bolts: 6-Bolt
- Material: Aluminum
- Finish: Natural
- MPN: 54903U
- Quantity: Each
