WMS Foxbody Coyote Swap

So you want to swap a Coyote into your Fox Mustang. We agree it's one of the best engine setups going and a great option when upgrading your 5.0. Power is better than most stroker small blocks and drivability / reliability are excellent. Naturally aspirated is probably more than enough power for a Fox but if you want excess, add some boost and 700+ hp is easily attainable.

We dug deep in our parts bin and swap knowledge to put together an engine package that covers most of the important parts needed to get a Coyote up and running in your Fox Mustang. Yes there's more needed but this gives you a pretty good idea what its going to cost to get going.

  • 2015-2015 F150 Coyote engine
  • We have a good source to purchase good used truck engines. The 2015 - 2017 Gen 2 Coyote is a significant upgrade from the Gen 1 and don't suffer from the valve issues that the 2011-2014 truck engines had. Power in stock form is 385hp but with headers and tuning 425-450 is easily attainable.
  • Holley Terminator X EFI System with wiring harness
  • We have debated the new Holley system vs the Ford Controls Pack but to run a truck engine the Holley is the best choice. First the firing order of the Gen 2 truck engine is different than the Mustang. This requires a tuning change which is easily done in the Holley. The Control Pack would require an SCT and custom tuning that adds considerably to the cost. The Holley comes complete with a engine wiring harness that's easy to wire into the Mustang and is completely tuneable. So future modifications are easily handled.
  • The Holley comes with a LSU 4.9 Wideband sensor for self tuning and is easily monitored / datalogged in the handheld programmer.
  • BBK Coyote Swap headers and X pipe
  • The BBK Coyote swap headers and X pipe are excellent quality and fit nicely. A standard Fox catback bolts up to them and headers are available in optional ceramic coating if desired.
  • QA1 tubular K-member with Coyote mounts
  • QA1's new k-member makes the Coyote swap easy and more affordable. A direct bolt in k-member with engine mount pads for the Coyote. The k-member works with stock control arms and tubular control arms are available as an option. The QA1 is a great street / drag k-member. If you're building your Fox for road course racing then we would recommend the Maximum Motorsports setup.
  • QA1 Coil over kit with springs
  • Coilovers in the front are required as there is no stock spring perch in the tubular k-member. QA1 coil over kit fits stock, Koni, Tokico, Strange and most other shocks. Various spring rates are available to suit your application.
  • Ford Performance Alternator kit with belt
  • The Boss alternator kit is a direct bolt on and supplied with the correct belt.
  • High Torque mini starter
  • A direct bolt on with lots of clearance for the headers.
  • Electric power steering pump
  • The easiest way to keep the power steering in your Fox. The Coyote engines never came with power steering so fitting a belt drive pump can be difficult and expensive. We use the Ford / Volvo power steering pump that is compact and easy to install. Just positive / negative battery and a key on power and it's wired. The pump can be mounted anywhere with just a feed and return line to be connected. We supply the main fitting but you will need to have a AN fitting crimped onto your power steering hose.
  • WMS High Velocity Air intake system
  • This side mount intake uses 4" aluminum tubing and a large S&B cleanable air filter.
  • Ford drive by wire accelerator pedal
  • Plugs into the Holley wiring and controls the drive by wire throttle body. Easy to mount and there are adapter brackets available if you want to bolt right in.
  • Stock style engine mounts
  • Engine mounts bolt to the Coyote and drop right into the k-member, no messing around!

So that covers the main parts needed to get the engine in and up and running. Of course there's more needed before you can take it for a test drive...

  • Radiator and heater hoses: It's easy to modify some hoses to hook up to your radiator and heater core.
  • Electric fan: If you don't have one already you're going to need one. And the Holley Terminator will control it for you
  • Fuel system: If you have a 190 or 255 lph pump already that will handle the fuel flow. Stock lines will work too, you will just need a regulator and bit of line to hook to the engine.
  • Gauges: You can hook up the stock gauges without too much trouble and the Holley has a tach output. Of course lots of aftermarket gauges and Holley has fantastic Digital Dashes that take information right from the Terminator X
  • Oil filter: The Coyote oil filter location causes issues so it's best to use a remote mount for the filter. We have a Canton block adapter that makes fitting easy.
  • Transmission: There are various options to consider. The easiest for a manual would be the T-45 or 3650 from a 96-04 Mustang. These bolt up to the engine and the shifter is in the correct location for a Fox. You can use your T-5 with a Quicktime bellhousing but that depends how good of a T5 you have. The T-56 is a popular choice as well, athough getting up there in cost. You will also need a flywheel and clutch to match the transmission. For an automatic transmission the 4R70W or 6R80 will bolt up but will require electronic control (The Holley Terminator X can run a 4R70W).
  • Driveshaft: This will depend on your transmission choice but generally having your driveshaft shortened is the best strategy.
  • Brakes: The stock booster will not fit with a Coyote. We recommend manual brakes over hydroboost but either will clear.