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MTM117-350 - Mast Motorsports LS7 427 with Whipple 2.9L Supercharger (750hp), 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: Replaced by MTM117-451
Shipping: FREE 48 State Shipping


Type: LS7 7.0L W2.9
Displacement: 427 Cubic Inches
Compression Ratio: 9.5:1
Bore x Stroke: 4.125 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 Black Label LS7
Intake: Intercooled Supercharger
Valve Springs: Mast Dual

*Billet 102mm Throttle not included.

Engine Components:

  • LS7 Block
  • Plateau Honed to 4.125”
  • True Surfaced Deck
  • Engine Block Deburred
  • Blueprinted Shortblock
  • Clevite Rod and Crank Bearings
  • Callies 4.000” Stroked Crankshaft
  • Callies Forged H-Beam Connecting Rods
  • Custom Mahle Motorsports Pistons
  • Mast Black Label 11 Degree LS7 Heads
  • Stainless Intake Valve
  • Inconel Exhaust Valve
  • ARP Head Bolts
  • ARP Main Studs
  • Cometic Head Gaskets
  • Mast 3-Bolt Core Hydraulic Roller Cam
  • LS7 Hydraulic Roller Lifters
  • Mast Black Label Pushrods
  • Mast Nitrided Beehive Valve Springs
  • Dash Harness
  • MAP/IAT Harness
  • Trans Harness
  • EGO Harness
  • Bosch EGO Sensor
  • Fuel Pump Harness
  • Fan Harness
  • Whipple 2.9L Supercharger
  • Air to Water Intercooler
  • GM 90mm DBW Throttle Body
  • Custom LS7 Style 62lb/hr Fuel Injectors
  • Dual Nipple Boost Bypass Diaphragm
  • Electronic Solenoid for Boost Control
  • Ultra Heavy Duty Belt Tensioner
  • Mast 8 Layer Air Filter with IAT Bung
  • Intake Air Temperature Sensor
  • Crankshaft Position Sensor
  • Camshaft Position Sensor
  • Oil Pressure Sensor
  • Oil Temperature Sensor
  • Engine Coolant Temperature
  • Engine Knock Sensors
  • Throttle Outlet Pressure Sensor
  • Manifold Air Pressure Sensor
  • Ignition Coils
  • Spark Plugs
  • Plug Wires
  • GM Foot Pedal
  • GM Starter
  • GM Oil Filter
  • Break In Engine Oil
  • Engine Break in Oil Additive
  • Powerbond SFI Approved Y-Body Damper
  • Choice of F-Body, Y-Body or Truck Water Pump, Balancer and Oil Pan
  • Application List



    • 117-350
    • 117-350
    • Mast Motorsports
    • Replaced by MTM117-451
    • New

    Shipping Information

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

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