mountune 2.3L EcoBoost Long Block N1

Focus RS 2016-2018

mountune?s extensive knowledge of the Ford EcoBoost engine coupled with broad motorsport experience provides the foundation for our N1 improved performance 2.3L Ford EcoBoost long block assembly. Each long block is skillfully assembled using a brand new Ford RS engine block coupled with Supertech Forged Pistons and Forged Connecting Rods, high-performance bearings, and a genuine RS crankshaft. We also use a brand new genuine Ford RS cylinder head assembly, camshafts, and valve train to ensure reliable performance.

This is the perfect foundation for those looking for a mild increase in performance or those that need to replace their worn or damaged original engine in their Focus RS. Upgraded forged internal components and mountune build quality allow for increased performance without breaking the bank account.

We take the guesswork out of critical engine assembly and minimize downtime. We also include our RS oil control pan upgrade. This engine specification is designed for use in cars with mild upgrades and typical street use. For high boost, track days, and other motorsport applications, we recommend our fully option High-Performance Long Block.

All NEW Components - No Core Charge

• New genuine Ford RS Engine Block (CSS Option Available)
• New genuine Ford RS Cylinder Head
• New genuine Ford RS Forged Crankshaft
• Forged Connecting Rods
• Forged 87.5mm Piston Set
• mountune Baffled Oil Control Sump
• Mountune ICR Head Gasket
• mountune Balance Shaft Delete Modification
• New genuine Ford Oil Pump and Drive Chain (High-Pressure Oil Pump Option Available)
• New genuine Ford complete Camshaft Drive Assembly
• New genuine Ford Rear Main Seal
• New genuine Ford cam cover
• mountune Tri-Metal Motorsport Main and Rod Bearings
• Includes professional assembly including Camshaft Timing Set

Block Features

The genuine RS engine block is first inspected, and de-burred, then the bores are honed to perfection to receive the upgraded Forged Pistons. The rotating assembly that includes a new Ford RS crankshaft and Forged Connecting Rods is balanced to within .5 gram. These select parts are professionally assembled by one of mountune's skilled engine builders using tri-metal race spec bearings. Each assembly includes a detailed data sheet showing all critical engine dimensions.

• Bore: 87.5mm
• Stroke: 94 mm
• Compression Ratio 9.5:1
• Optional Block Upgrade which includes Cylinder Support System , High Pressure Oil Pump & Keyed Crankshaft