Muscle Mustangs & Fast Fords
Ford 5.0L Engine Performance Packages - Packaged Performance
EFI and carb combinations for general consumption
Speculating about horsepower is a time-honored tradition. Fact is, everyone wants big power, but most people overestimate how much they really have. You have no idea how many 400hp combinations really make 325 hp. The same can be said of 500hp combos making 400 hp and 600hp motors that make nowhere near 500 hp. The only sure-fire way to determine output is to dyno test it—or run it at the dragstrip where you can use the vehicle's weight and trap speed to get a close estimate.
That's why we go to great lengths to verify the performance of our projects. Our stories often provide the recipe and the results. The one problem with building and testing a single engine is that it only provides accurate information on one particular combination. Change one part and the power curve will change as well. So unless you follow the build exactly, you can expect different results. And changing parts is sometimes part of the fun.
While the modular Ford is a killer powerplant, it lacks the variety of parts and variety of possible combinations of heads, intakes, cams and displacement. Often times a simple blower or turbo will make one fly. The early 5.0 engines often take a bit more finessing of the combination. You have to know your stuff to pick the best cam, heads, and induction for max power.
For this reason we've provided you with multiple dyno-verified 5.0L combinations—even going so far as to include both carbureted and EFI induction combos.
Since man does not live by 5.0Ls alone, we've included stroker combinations as well, as these are simply displacement upgrades that, like heads, cam and intake, offer additional power.
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5.0L Performance Packages-302
|Engine Specs-Stock 5.0L H.O.|
|Forged||Yes and no—depends on year|
|Heads Stock||5.0L E7TE|
|Upper Intake||Stock 5.0L H.O.|
|Lower Intake||Stock 5.0L H.O|
|Throttle Body||60mm stock|
|EFI System||Holley Dominator|
|MAF||Stock Ford (not used on engine dyno)|
|Distributor||Stock (MSD used on dyno)|
|Header (style)||Hooker long-tube|
|Cam||Stock 5.0L hyd-roller (hyd/solid-roller)|
|Int Dur Degrees||276 @ 0.006|
|Ex Dur Degrees||266 @ 0.006|
|Exhaust||2.5-inch with mufflers|
|Max Power (dyno)||232 hp @ 5,100 rpm|
|Max Torque (dyno)||306 lb-ft @ 3,400 rpm|
To properly illustrate the power gains offered by the modified versions, we first had to dyno test a stock 5.0L under the same conditions. Rated at 225 hp and 300 lb-ft of torque by the factory, our test method differed from Ford. First off, our stock 5.0L was far from factory fresh, instead having logged over 100,000 miles in an '89 Mustang. We simply removed it from the wrecking yard and made the necessary modifications to run it on the engine dyno. This required removal of the accessories, and installation of the Meziere electric water pump. Tuning came from a Holley EFI system, that meant eliminating the MAF and remainder of the induction system. The exhaust consisted of Hooker Super Comp headers feeding a 2.5-inch exhaust. The remainder of the motor was stock from the 60mm throttle body to the factory oil pan. Equipped on the dyno and tuned to perfection, the 5.0L produced 232 hp at 5,100 rpm and 306 lb-ft of torque at 3,400 rpm. Given that a modern Coyote motor makes twice that much horsepower, it is hard to believe that this was considered powerful back in the day.