ENGINE OVERVIEW:
Mountune's extensive knowledge of the Ford EcoBoost engines coupled with our comprehensive motorsport experience provides the foundation for our high-performance 1.6L Ford EcoBoost engine assemblies.
Each mountune EcoBoost assembly starts off as a brand new aluminum Ford Fiesta ST open deck engine block which can be strengthened with the latest Cylinder Support System before being skillfully assembled with mountune forged pistons, forged h-beam connecting rods, and tri-metal racing bearings.
Engine Specs:
| Base Engine | 1.6L Ford EcoBoost |
| Bore X Stroke | Φ 79mm x 81.4 mm |
| Compression Ratio | 10.1:1 |
| Piston | Upgraded Forged Piston |
| Connecting Rod | Mountune Forged H Beam Rod |
| Crankshaft | 81.4mm Fiesta ST |
| Main Bearing | Mountune Race Tri-Metal |
| Main Bolts | OEM High-Tensile Strength |
| Application | Fiesta ST 2014-2019 |
Reinforced Open-Deck Design
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 and features full support between each cylinder.
MACHINED FOR OPTIMIZED AIRFLOW
The mountune MRX Cylinder Head is a factory cylinder head that has undergone our precision MRX machining service for the best possible performance, increasing intake airflow by 51% and exhaust airflow by 24%.
Our 1.6L EcoBoost MRX cylinder head found on the 1.6 MRX Long Block engine assembly also features high-performance black nitrided intake valves, sodium inconel exhaust valves, along with our motorsport valve stem seals, and V2 camshafts.
Comparison Chart:
HP Short BlockSKU: 6064-SB-160 |
N1 Long BlockSKU: 6064-LB-160S1 |
MRX Long BlockSKU: 6064-LB-160S2 |
|
| Engine Block | Factory New Ford OEM Aluminum 1.6L EcoBoost Engine Block | ||
| Cylinder Support System | Available | Included | |
| Pistons | Lightweight 79 mm Bore 10:1 Compression Ratio Forged Pistons w/ Nitrided Rings | ||
| Connecting Rods | High-Tensile Strength Forged 4340 Alloy Steel H-Beam Rods w/ ARP 2000 Bolts | ||
| Crankshaft | Dynamically Balanced Ford OEM Fiesta ST Forged 4340 Steel 81.4 mm Stroke Crankshaft | ||
| Oil System | Not Included | Mountune Baffled Oil Control Sump | |
| Fasteners | Not Included | Premium Grade 8740 Alloy High-Performance Cylinder Head Studs w/ Black Oxide Finish | |
| Cylinder Head | Not Included | Ford OEM 1.6L Ecoboost DOHC w/ Variable Camshaft Timing Aluminum Cylinder Head |
Mountune MRX Cylinder Head w/ Motorsport-Grade Valves and V2 Camshafts |
| More Information | More Information | More Information | |
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