Engines Built To Order

Estimated build time is currently 10-12 weeks

Please note, that there may be circumstances that may delay the build process including (but not limited to) part shortages and backorders beyond our control.

Installation Guides

Find the important information you need to install this engine into your build, as well as our recommended break-in procedure.

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Mountune Racing Engines

mountune High Performance 3.5L F-150 Raptor Short Block

mountune High Performance 3.5L F-150 Raptor Short Block


Regular price $7,099.00
Regular price $7,099.00 Sale price $7,099.00
Sale Sold out

Mountune's extensive knowledge of the Ford EcoBoost engines coupled with our comprehensive motorsport experience provides the foundation for our high performance 3.5L Ford EcoBoost short block assembly.

Each short block starts off as a brand new aluminum Ford F-150 Raptor open deck engine block which can be strengthened with the Cylinder Support System before being skillfully assembled with mountune forged pistons, forged h-beam connecting rods, tri-metal racing bearings, and a forged crankshaft all balanced to motorsport standards.

This engine is the perfect foundation for your F-150 Raptor for high boost applications or as a direct replacement for your tired original engine.

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Additional Information:

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Engine Specifications

  • Product Code: 6000-SB-350
  • Base Engine: 3.5L Ford Ecoboost
  • Bore x Stroke: Ø 92.5 mm x 86.6 mm
  • Compression Ratio: 10:1
  • Piston: Upgraded Forged Piston
  • Connecting Rod: Mountune Forged H Beam Rod
  • Crankshaft: OEM Ford Raptor Crankshaft
  • Main Bearing: Mountune Race Tri-Metal
  • Main Bolts: OEM High-Tensile Strength
  • Application: F-150 Raptor 2017-2020 and all Gen2 powered trucks

Cylinder Support System

The Cylinder Support System is a proven method of strengthening open deck engine blocks while maintaining OEM integrity. The support ring is made from aircraft grade 6061-T6 aluminum. It prevents cylinder cracking, walking, and bell mouthing.

Warranty Coverage

Mountune is confident in our products and services and we proudly stand behind our workmanship. Therefore, we offer a limited warranty against defects in workmanship or materials, covering both parts and labor, for a standard period of 1-Year/12,000-Miles.

For more information see, terms & conditions.


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