Full Send Late Model Performance
Factory Mast Crate Engines 450HP - 350 Cubic Inch Factory Mast Turn Key Crate Engine - Port Injected
Factory Mast Crate Engines 450HP - 350 Cubic Inch Factory Mast Turn Key Crate Engine - Port Injected
Factory Mast Crate Engines 450HP - 350 Cubic Inch Factory Mast Turn Key Crate Engine - Port Injected
Factory Mast Crate Engines 450HP - 350 Cubic Inch Factory Mast Turn Key Crate Engine - Port Injected
$ 6,999.00

450HP - 350 ci Factory Mast Turn Key Aluminum Crate Engine - Port Injected

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Only left in stock

Port Fuel Injection Long Block +

Factory Mast Long Block (+) Crate Engine Combination

What is a long block plus?  It is a budget conscious complete long block that you can simply add the final touches to for a complete engine package.  With so many options to choose from, you can pick what you need for each application and vehicle integration.

Factory Mast Starts with the GM LT Base (GenV) engine and carefully assembles for maximum quality and horsepower & torque ratings.  Utilizing port fuel injection, with E38 GM ECM, this engine package retrofits as easy as the LS3 and other turn key engines.

Long Block Plus Specifications (Comes Standard)

  • 450HP/425TQ
  • L83 Aluminum Short Block
  • 5.7 Liter (350 Cubic Inches)
  • CNC Ported Heads
  • Factory Mast Proprietary Camshaft & VVT Lockout
  • Upgraded Performance Valve Springs
  • Port Fuel Injection Ready
  • Dyno Tested & Base Tune (Where Applicable)
  • Comes with Spark Plugs & Spark Plug Wires
  • New Coils
  • Factory Style Valve Cover
  • L8T Truck Oil Pan
  • Factory Balancer