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MTM117-260 - Mast Motorsports Black Label LS3 416 SS with Hilborn Fuel Injection System (630hp), NO ECM or Harness

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Availability: Item has been discontinued and is no longer available
Shipping: FREE 48 State Shipping


Mast Motorsport’s Black Label LS3 Engine Specs:

  • Type: LS3 6.8L
  • Displacement: 416 Cubic Inches
  • Compression Ratio: 11.2:1
  • Bore x Stroke: 4.070 x 4.000
  • Rev Limit: 7000 RPM
  • Crank: Callies Forged
  • Rods: Callies H-Beam
  • Pistons: Mahle Motorsports
  • Cam: Mast Custom 3-Bolt Core Cam
  • Heads: Mast 12 Degree CNC LS3 Heads
  • Valve Springs: Mast Nitrided Beehive

    Hilborn Fuel Injection System:

  • Part Name: LS Series Chevy Electronic Fuel Injector
  • Application: LS engines with any deck height, LS1, L92, or LS7 heads
  • Bore Size: 2-3/16?, 2-7/16?, 2-1/2?, 2-5/8?
  • Heat-treated aluminum casting
  • Cad-plated steel ram tubes
  • Fully assembled with shafts, butterflies, linkage, fuel rails, mounted TPS with connector and vacuum kit

    Watch a dyno video:

  • Application List



    • 117-260
    • 117-260
    • Mast Motorsports
    • Item has been discontinued and is no longer available
    • New


    Shipping Information

    • Item Requires Shipping
    • 500.0 lbs.
    • FREE 48 State Shipping

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