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mountune High Performance 3.5L EcoBoost N1 Long Block - F150 Raptor

mountune High Performance 3.5L EcoBoost N1 Long Block - F150 Raptor

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 long block assembly.

Each long 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. We then add all new genuine Ford Gen2 cylinder heads and valve train along with the latest version cam phasers and drive chains all timed to factory specs. 

Engine Build Specifications

Product Code 6000-LB-350
Base Engine 3.5L Ford Ecoboost
Cylinder Head 3.5L Ford Ecoboost
Bore x Stroke Ø 92.5 mm x 86.6 mm
Compression Ratio 10:1
Upgraded Forged Piston
Connecting Rod 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 2017-2020 and all Gen2 powered trucks 

This engine is the perfect foundation for your F-150 Raptor /F150 for high boost applications 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 $12,225.00
Regular price $12,225.00 Sale price $12,225.00
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Estimated Build Times

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

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.

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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  • Easy Financing Options Available

    Buy now, pay later payment options are offered by Affirm and are subject to eligibility. Select ShopPay monthly installments at checkout.

  • 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.