2.0L EcoBoost Engine Assemblies


Mountune's extensive knowledge of the Ford EcoBoost engines coupled with our comprehensive motorsport experience provides the foundation for our high performance 2.0L Ford EcoBoost engine assemblies.

Each assembly starts off as a brand new aluminum Ford Focus ST engine block then skillfully assembled with mountune forged pistons, forged connecting rods, tri-metal racing bearings, and a keyed OEM Focus ST crankshaft.

This engine is the perfect foundation for your Focus ST for high boost applications including track day use or as a direct replacement for your tired original engine.

Engine Specifications:

Base Engine 2.0L Ford EcoBoost
Bore X Stroke Φ 87.5mm x 83.1 mm
Compression Ratio 9.3:1
Piston Upgraded Forged Piston
Connecting Rod Mountune Forged H Beam Rod (N1)
Mountune Forged I Beam Rod (MRX)
Crankshaft OEM Focus ST w/ 3mm Key
Main Bearing Mountune Race Tri-Metal
Main Bolts OEM High-Tensile Strength
Application Focus ST 2013-2018


Precision Machined For Maximized Airflow 

2.0L MRX Long Block is topped with a mountune MRX Cylinder Head. A factory Focus ST cylinder block that has undergone our precision MRX machining service for the best possible performance, increasing intake airflow by 44% and exhaust airflow by 19%.

The mountune MRX cylinder head for the Focus ST also features high-performance black nitrided intake valves, sodium inconel exhaust valves, along with our motorsport valve stem seals, and your choice of V2 or V3 camshafts.

    Camshaft Information

    • V2 Camshafts offer good all around drivability while providing excellent power and response. We recommend these for most applications.
    • V3 Camshaft option works well with larger than stock turbochargers and enhances high RPM power level. Because of the longer duration and higher lift, rough idle should be expected and considerable tuning effort may be required for these camshafts to function correctly.


    Comparison Chart:


    Short Block

    SKU: 6063-SB-930

    N1 Long Block

    SKU: 6063-LB-200

    MRX Long Block

    SKU: 6063-LB-201

    Engine Block Factory New Ford OEM Aluminum 2.0L EcoBoost Closed Deck Engine Block
    Pistons Lightweight 87.5 mm Bore 9.3:1 Compression Ratio Forged Pistons w/ Nitrided Rings
    Connecting Rods High-Tensile Strength Forged 4340 Alloy Steel H-Beam Rods w/ ARP 2000 Bolts High-Tensile Strength Forged 4340 Alloy Steel I-Beam Rods w/ ARP 2000 Bolts
    Crankshaft Dynamically Balanced and Keyed Ford OEM Focus ST Forged 4340 Steel 83.1 mm Stroke Crankshaft
    Oil System Not Included Mountune Baffled Oil Control Sump and High-Pressure Oil Pump
    Fasteners Not Included Premium Grade 8740 Alloy High-Performance Cylinder Head Studs w/ Black Oxide Finish
    Cylinder Head Not Included Ford OEM 2.0L Ecoboost DOHC w/ Variable Camshaft Timing Aluminum Cylinder Head Mountune MRX Focus ST Cylinder Head w/ Motorsport-Grade Valves and V2 Camshafts
    More Information More Information More Information


    Additional Photos:

    Back to blog
    1 of 3