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 Gen 2,  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 valvetrain along with the latest version cam phasers and drive chains all timed to factory specs.

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

All engines are built to order. Check lead times for current delivery times. 

Important Notice: Extended Lead Times

Due to high demand and ongoing parts supply delays, our custom-built-to-order engines are experiencing extended lead times. We’re committed to quality and appreciate your patience. For the latest lead time estimates, please contact us.

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.

Product Specifications:

Base Engine: 3.5L Ford Ecoboost
Bore x Stroke: Ø 92.5 mm x 86.7 mm
Compression Ratio: 10:1
Piston: Upgraded Mountune Forged Piston
Connecting Rod: Mountune Forged H Beam Rod
Crankshaft: Forged Crankshaft
Main Bearing: Mountune Race Tri-Metal
Main Bolts: OEM High-Tensile Strength
ARP Head Studs
OE Fuel System

Application: F-150 Raptor 2017-2020 and all Gen2 powered trucks