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  • View all Brands
  • American Vehicles
  • PISTONS SALE ON NOW! - Don't Miss Out!
  • *** LATEST ARRIVAL OF TEXAS SPEED CAMS!! ***
  • Valvetrain Essentials
  • Race Now, Pay Later
  • Brakes
  • Camshafts
  • Camshaft Packages - SALE ON NOW
  • Cold Air Intakes
  • Cooling
  • Cylinder Heads
  • Cylinder Head Porting
  • Driveline
  • Electrical
  • Engine Management Systems | ECU
  • Engine & Valvetrain
  • Engine Packages
  • Exhaust Systems - SALE ON NOW
  • Finance Packages
  • Fuel Systems
  • Harmonic Balancers
  • Haltech
  • HARROP Hurricane ITB Manifold LS3/LS7
  • HARROP Supercharger
  • Harrop Supercharger Finance
  • LSX Engine Covers
  • LSX Machine Shop
  • Manifolds
  • Merchandise
  • Oil Systems
  • Rebuild | Freshen Up Packages
  • Rotating Assemblies
  • SBC | Small Block Chev
  • Supercharger Kits
  • Throttle Bodies
  • Top End Kits
  • Torque Converters

    • Shop by Brand

  • CP Carillo
  • Texas Speed & Performance
  • Crow Cams
  • Manta Performance Exhaust
  • HARROP
  • GM Performance
  • JE Pistons
  • XSpurt
  • Di Filippo Performance Exhausts
  • VCM
  • View all Brands

    • GM Blocks

    • GM LS3 6.2L Aluminium Block 4.065" Bore 9.240" Deck
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      GM LS3 6.2L Aluminium Block 4.065" Bore 9.240" Deck

      LSX Performance Parts supply our LS3 6.2L Genuine GM Engine Block. This block is the perfect starting point to building your big horsepower, lightweight, reliable naturally aspirated or supercharged performance engine. Our LS3 engine blocks are a...

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