Collection: Focus ST Engine Upgrades

At mountune, our in-house engine builders are some of the most experienced and knowledgeable in the industry. They take pride in their craft and are committed to delivering engines that meet our exacting standards for performance and reliability. Every long block engine undergoes a rigorous process of deburring, clearancing, and inspection, ensuring that each component is precisely machined and fitted to motorsport tolerances.

When you choose a mountune racing engine, you're not just getting a high-performance engine. You're getting the benefit of our decades of experience and expertise, as well as our commitment to excellence in every aspect of engine building.

Focus ST - Mountune 2.0L EcoBoost Engines

	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

Focus ST - Mountune 2.3L Stroker EcoBoost Engines

	Short Block SKU: 6063-SB-230	N1 Long Block SKU: 6063-LB-232	MRX Long Block SKU: 6063-LB-233
Engine Block	Factory New Ford OEM Aluminum 2.0L EcoBoost Closed Deck Engine Block
Pistons	Lightweight 87.5 mm Bore 9.5:1 Compression Ratio Focus RS Forged Pistons w/ Nitrided Rings
Connecting Rods	High-Tensile Strength Forged 4340 Alloy Steel Focus RS H-Beam Rods w/ ARP 2000 Bolts		High-Tensile Strength Forged 4340 Alloy Steel Focus RS I-Beam Rods w/ ARP 2000 Bolts
Crankshaft	Dynamically Balanced and Keyed Ford OEM Focus RS Forged 4340 Steel 94 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