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Jumpstart your LS build with this Dart LSN SHP Engine Block, the perfect foundation for street/strip brawlers or drag-ready LS engines! Prepped for LS platforms like LS1, LS3, or LSX with a 4.125" bore, it’s ready to support 700-1500hp for supercharged street cars or single-turbo drag setups. Fully machined with cam bearings, freeze plugs, and oil galley plugs installed, it’s a time-saver for your custom project. Call 210-446-0960 to match it with the right crank and rods for your build!
Here’s what sets this block up for your LS project:
| Feature | Dart LSN SHP Block Details |
|---|---|
| Part Number | Dart PN: 31867211 |
| Cylinder Bore | 4.125" Final Diameter |
| Honing | CNC Plateau Honed with Dual Torque Plates |
| Deck Surface | CNC Parallel Surfaced |
| Cylinder Prep | Deburred Top & Bottom |
| Stroker Clearance | Up to 4.125" with Steel Rods |
| Crankshaft Compatibility | Clearanced for Center-Counterweight Crankshafts |
| Cam Bearings | Coated, Pre-Installed |
| Freeze Plugs | Brass, Pre-Installed |
| Oil Galley & Coolant Plugs | Pre-Installed |
Build Tip: This block is perfect for LS1 street builds hitting 700-1000hp with a naturally aspirated or supercharged setup, or LS3 drag builds pushing 1200-1500hp with a single turbo. Use a 4.000"-4.125" stroke crank and 6.125" rods for a rock-solid rotating assembly!
Assembly Notes: Prepped for your crank, rods, and pistons, but a skilled builder should verify clearances for your setup (NA, turbo, or supercharged). We’re not liable for damage from improper assembly or mismatched components.
Sales Policy: Engine blocks are custom-prepped and non-returnable. All sales are final, so confirm your LS build specs before ordering!
Availability: In stock and ready to ship—start your LS build now!