EMS – Badass Build Short Block for 2016-2018 Focus RS 2.3L

Price range: $4,510.03 through $7,157.93

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Current build time: 4–5 months from date of order. Sleeved options add approximately 1 month. Turnaround may vary based on parts availability and build queue — we’ll keep you updated throughout the process.

EMS BadAss Build Short Block — built for experienced enthusiasts targeting 600–700 horsepower, or for anyone who wants a very reliable 600hp setup that can be driven hard without living at the edge of the engine.

Proper fuel system upgrades, supporting modifications, and professional tuning are assumed.

What’s Included

  • New-pinned OEM crankshaft with matching crank gear and balancer
  • MAHLE pistons — standard or high compression
  • Wiseco Boostline rods
  • King main and rod bearings
  • Balance shaft delete
  • OEM oil squirters
  • Your choice of block: new or used ST, used MZR, or bring your own

Rated for 700whp as built. Add sleeves and it goes to 1000+.

Don’t Forget the EMS Must-Haves
These items are required for short block installation and are not included with the engine:

  • ARP 625 head studs
  • OEM head gasket
  • Rear main seal
  • Brisk plugs (gapped)

⚠️ BEFORE YOU BUY — PLEASE READ

EMS Engine Break-In Procedure →
Proper break-in is required to protect your engine and maintain warranty coverage. Review before your engine arrives.

EMS Engine Warranty & Return Policy →
Review coverage terms and exclusions. Note: flamethrower and exhaust ignition systems are excluded from warranty coverage.

(Stroker Build Notice – All EMS performance engines are 2.3L stroker builds. By purchasing, you acknowledge these engines are intentionally stroked from the original 2.0L configuration to 2.3L)

Call us (423) 500-4901 or

Email us at sales@emsinc-tn.com

WWW.EMSINC-TN.COM

 

Start your build:

CNC-machined billet aluminum valve cover for the 2.0/2.3L EcoBoost — fits the Mustang, Focus RS, and Focus ST. Custom fittings for crankcase ventilation, dry sump ready, and available in Anodized EMS Blue or Raw Billet. (SAVE $100)
MANUAL TRANSMISSION ONLY - EMS recommends a new slave cylinder be installed with any new clutch. EMS will not install a new clutch in-house without also installing a new slave cylinder.
This order cannot be processed if Engine Return and Warranty Policies Terms and Conditions are not agreed [LINK BELOW]
If you select installation at EMS, please call the shop to inquire about applicable labor fees. Installation costs are not included in the product price and will vary based on the service required.
EMS - Badass Build Short Block for 2016-2018 Focus RS 2.3L
This item: EMS - Badass Build Short Block for 2016-2018 Focus RS 2.3L
Price range: $4,510.03 through $7,157.93
Price range: $4,510.03 through $7,157.93
MAPerformance 2015-2023 Mustang 2.3L EcoBoost Rear Main Seal Housing
$174.99
Brisk - RR12S Spark Plugs - 4 spark plugs
$50.00