Mazda V8 Conversion Kit - Mustang 5.0 Swap

10.Use the donor heater hose for one side and a stock Mazda one for the other and you'll find that they work just perfectly. More clearance is seen from the passenger side. The Mazda's fuel lines are the same size as the Mustang's, so hang on to them. The Mustang throttle cable is fitted through a 1/2-inch hole in the firewall, then fastened to the Mazda gas pedal.

11.Check out the firewall clearance - you just can't get this from a Chevy.

12.With the exhaust manifold, lower radiator hose, and oil filter in place, there's still plenty of room to work. Make sure your stock radiator has been re-cored with at least three rows of tight-fin-pattern cooling power. It will bolt back into its stock location. The radiator hoses from the donor Mustang were used with minimal trimming. A clear shot of just how much the new Ford Motorsports water pump offers in the way of clearance is evident. There's plenty of room for the two 10-inch or one 14-inch electric fan you'll need for proper cooling.

13.If you want to use a stock Mustang fuel pump, you'll need to follow the next five steps. A high-volume electric pump can be used if you don't want to perform this gas tank trick. Remove the gas tank from the truck, safely drain the fuel, and flush it with water. Unbolt the OEM plate that contains the pickup and float assembly.

14.The OEM unit will look like this as it comes out.

15.Locate and drill a 2-1/8-inch hole with a hole saw.

16.Keep the float for the gauge, seal the in/out line holes, and reinstall the assembly. Make sure your seal job doesn't leak and is cured before going on to the next step. Otherwise, you can seal it when you're done.

17.The Mustang fuel pump is located at the same depth as the OEM truck unit inside the tank. Fit the Mustang pickup pump into the hole; Ultimate Customs recommends a splash guard to prevent cavitations when the tank is less than full. Locate the lock ring and drill one or two corresponding holes - not all of them - to start mounting the new lock ring. Fasten the first holes, making sure the gasket is seated properly. Drill and fasten the rest of the hardware. After all the holes are drilled, remove the bolts and wash out all the metal chips from the drilling. Once everything is clean, mount the lock ring on permanently. Use high-pressure braided hose to join the Mazda fuel lines. Then fire it up, check for leaks, and go surprise everyone with a B-mini that's no longer anemic.