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mountune High Performance 3.5L F-150 Raptor Short Block

mountune High Performance 3.5L F-150 Raptor Short Block

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.

Engine Build 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
Upgraded Forged Piston
Connecting Rod Mountune Forged H Beam Rod
Crankshaft OEM Ford Raptor Crankshaft
Main Bearing Mountune Race Tri-Metal
Main Bolts Premium Grade 8740 Alloy
Application F-150 Raptor 2013-2018

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

Cylinder Support System Information

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.

Regular price $6,388.99
Regular price $7,099.00 Sale price $6,388.99
Sale Sold out

Estimated Build Times

For built to order engine assemblies the current estimated build time is 10-12 weeks. (As of April 2023)

For more information please contact us.

Installation & Break-In Process

To see all available installation and break-in instructions, click here.

Warranty information

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.

Disclaimers & Legal

This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.

Click Here for emissions compliance information.

California Residents Prop 65 Information
California’s Proposition 65 entitles California consumers to special warnings for products that contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm if those products expose consumers to such chemicals above certain threshold levels. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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  • Start your engine with a Deposit

    With a 50% deposit we can start your engine assembly process. The remaining balance will be due upon completion of your long block or short block engine.

    Contact us for more information 
  • Flat-Rate Freight Shipping

    Engine assemblies ship anywhere in the continental USA for one of two flat-rates. Long block assemblies ship for flat-rate of $350. Short block assemblies ship for a flat-rate of $100.