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Full Send Late Model Performance
427ci Factory Mast LS Crate Engine | 625hp
Factory Mast Crate Engines 427ci Factory Mast LS Crate Engine | 625hp
$ 20,995.00

427ci Factory Mast LS Crate Engine | 625hp


Only left in stock

Factory Mast Engines Deliver Turn Key Crate Engine quality.

Factory Mast hand builds each engine, and remanufactures components to bring you only the highest quality turn key engine available.

Factory Mast LS engines come standard with Factory Mast as Cast large bore heads

EVERY Engine is dyno tested, and pre-programmed with a baseline dyno tune*, to get you on the road faster.  Backed by the Mast Limited Warranty.


  • 427 Cubic Inch
  • Factory Mast LS Re-Sleeve remanufactured Block EB-LSX-302404
  • Ready to Run - Wire & Drive
  • HP Rated at 625+ HP
  • LS3 Style Port Heads
  • Holley ECM & Wiring Harness
  • Drive by Cable Throttle Body
  • Comes with Starter, water pump
  • All Engine Controls, wiring harness

* We recommend final tune be done in your vehicle for ultimate drive-ability.