8 Of The Most Reliable Ford Engines Ever Made – Jalopnik

High horsepower figures definitely seize headlines at launch, however the reliability and longevity of an engine flip it right into a legend. And Ford had loads of legends in its 123-year historical past. The Blue Oval developed V8s that etched its title into racing historical past alongside road-going blocks that ignited the horse automobile period. It has additionally constructed dependable workhorses that powered its beloved F-Series vans for many years, resulting in the favored “Built Ford Tough” slogan.

What usually will get ignored, nevertheless, is that almost all of Ford’s most dependable engines are highly effective and dependable on the similar time. Our listing of essentially the most dependable Ford engines ever made has the same old low-horsepower/high-durability suspects, certain — however it additionally consists of engines that excite with out requiring frequent visits on the mechanic. In many instances, the model proved it may combine high-tech options with out hurting reliability. Crucially, Ford did all this throughout radically totally different eras and with varied engine configurations. You may anticipate to solely see gas-powered V8s right here, however this listing additionally contains an unkillable inline-six, a heavy-hauling V10, and a number of industrial diesels.

The 300-Series won’t be highly regarded amongst muscle automobile fans (as a result of it was by no means utilized in one), however truck fans love this factor because of its wonderful reliability and low-end torque. It’s additionally one in every of Ford’s longest-lasting engines, spanning throughout three many years. The 4.9-liter (300 cubic-inch) naturally aspirated inline-six was by no means constructed to amaze with excessive horsepower figures. In the 1996 Ford F-150, which was the 300’s final yr available on the market, it solely produced 145 horsepower at a comparatively low 3,400 rpm. However, because of its long-stroke design, it additionally had an impressive torque determine of 265 pound-feet accessible at simply 2,000 rpm, virtually like a diesel engine.

The low-end torque made the Ford 300-Series excellent not only for vans, but in addition industrial and agricultural purposes. It definitely helped that it was constructed like a tank. Ford opted for a cast-iron block and head, solid connecting rods, hydraulic lifters, and 7 crankshaft bearings for sturdiness. In addition, this inline-six contains a set of timing gears, which additional elevated its reliability over chains. That stated, whereas it is usually sturdy, Ford’s inline-six workhorse has zero tolerance to overheating, which is its solely reliability-related difficulty.

Ford additionally produced a smaller 240 cubic-inch (3.9-liter) model, however it wasn’t as sturdy or torque-y, so Ford scrapped it after a decade. Meanwhile, the Ford 300 served varied workhorses for greater than three many years. It additionally acquired varied upgrades through the years, like an OBD-I connector in 1981 and gas injection in 1987. The engine remained dependable throughout that point, with many homeowners protecting over 300,000 miles.

The 7.3-liter V8 Power Stroke diesel’s manufacturing lasted for less than 9 years. But its affect may be seen in at the moment’s Ford Super Duty vans, that are massively extra succesful when outfitted with the optionally available 6.7-liter Power Stroke turbodiesel engine. Built by Navistar however designed by Ford, the 7.3-liter Power Stroke utterly modified the truck section when it arrived in 1994. The first iteration produced 210 horsepower and an enormous 425 pound-feet of torque, in comparison with the 175 horsepower and 420 pound-feet of its rival, the Cummins 5.9-liter inline-six turbodiesel. What’s extra, the ultimate 7.3-liter Power Stroke produced 275 horsepower and 525 pound-feet of torque.

Still, this huge V8 is especially remembered for being a dependable diesel engine that simply will not give up. There are a number of causes for this, however crucial one is the HEUI hydraulic injection system developed by Caterpillar and Navistar. The system was electronically managed, which could scare some, however it proved as dependable as mechanical injection in the long term. Thanks to its exact digital management and excessive injection pressures (21,000 psi), HEUI additionally allowed excessive energy, low emissions, and wonderful gas financial system.

It definitely helped that the engine’s internals had been additionally constructed to final. The 7.3-liter Power Stroke had a cast-iron engine block and head, solid metal rods, and hydraulic valve lifters. The end result: 400,000 to 500,000 miles of service life with common upkeep. Sure, 7.3 Power Stroke house owners nonetheless face points, however these are small and simply repairable. Just ensure you keep away from 2001-2003 Power Strokes, as some had been outfitted with much less sturdy powdered metallic rods.

Ford’s first modular has been utilized in so many alternative automobiles. It was first put in within the Lincoln Town Car, however it rose to prominence within the Ford Crown Victoria police and taxi automobiles, with some examples protecting 400,000 miles with out critical points. Hardly stunning, as all 4.6-liter modular V8s featured sturdy and sturdy deep-skirt blocks. The modular engine additionally changed the pushrod V8 within the Mustang GT — a lot to the displeasure of fans who thought the older 5.0-liter suited the horse automobile higher. Ford additionally used it in vans and SUVs, and a supercharged four-valve model even powered the Koenigsegg CC8S supercar.

Ford’s modular V8 is not with out points. Units produced from 1996 to 2001 have fragile consumption manifolds, and the engine’s brief spark plug threads may be simply broken. But in all different features, it is a very sturdy engine, particularly contemplating all of its totally different configurations. For occasion, the two-valve and three-valve variations had cast-iron blocks and SOHC aluminum heads, whereas four-valve variations had been all-aluminum and had DOHC heads. In reality, because of the modular structure, Ford makes use of the identical tooling to supply the newest 5.0-liter Coyote V8, as each engines have a 100-millimeter bore spacing.

Yes, the two-valve model within the 1996 Mustang GT was underpowered, producing solely 215 horsepower. Still, subsequent Mustangs noticed a rise to 260 horsepower, whereas the three-valve variations, launched in 2005, produced as much as 315. The four-valve modulars had been even crazier; the supercharged 2004 Mustang SVT Cobra packed as a lot as 390 horsepower.

The predecessor of Ford’s modular V8 is a legend in of itself — though “legends,” plural, may be a extra apt time period. The household of small-block V8s produced on the Windsor engine plant in Ontario, Canada, consisted of engines with totally different capacities, starting from 221 cubic inches (3.6 liters) to 351 cubic inches (5.8 liters). They had been all designed to offer enhancements over the Blue Oval’s Y-series V8s, that includes cast-iron heads and blocks with thin-wall castings.

That stated, the primary 221 cubic-inch Windsor V8 wasn’t fairly enthusiast-worthy, because it produced solely 145 horsepower. Later, although, the 289 cubic-inch (4.7-liter) and 302 cubic-inch (4.9-liter) small-block V8 formed the muscle automobile period with aggressive energy figures and good effectivity. So, unsurprisingly, Ford’s Windsor V8 household has discovered its manner in lots of iconic efficiency automobiles, such because the Shelby Cobra, DeTomaso Mangusta, Mustang Hi-Po 289, and fox-body Mustang SVT Cobra. Windsors are additionally highly regarded as swap engines, significantly within the scorching rod neighborhood.

Decades later, nevertheless, it is the superb reliability that made the Windsor V8 household iconic. This was true for the common, truck-oriented, and high-performance variants, however particularly the bigger 351 cubic-inch mannequin. Another large plus is the unrivaled aftermarket assist of the Windsor household, which makes reaching larger horsepower figures a breeze.

Back within the Nineteen Nineties, Ford wanted a alternative for its growing older 7.5-liter V8 heavy-duty truck engine. However, creating a brand-new big-block V8 was expensive, so Ford did the subsequent smartest thing. It added two cylinders to its modular small-block 5.4-liter Triton V8 and turned it into the 6.8-liter Triton V10. Yes, this is identical engine household that began with the dependable 4.6-liter modular engine, amped as much as 10. 

The end result was a beast of an engine with as much as 362 horsepower and a meaty 460 pound-feet of torque, figures that had been corresponding to the Blue Oval’s 7.3-liter Power Stroke V8 turbodiesel. It was virtually as dependable, too. Properly-maintained Triton V10s usually cowl over 300,000 to 400,000 miles, because of the stout cast-iron block and powerful internals. Accordingly, the 6.8-liter Triton V10 was able to serving the model’s Super Duty vans, E-Series vans, and buses. However, it additionally discovered its manner right into a “family SUV” — the large and dangerous Ford Excursion. The largest three-row SUV of its time, the Excursion V10 was 18.8 ft lengthy, weighed over 7,000 kilos, and coated solely 13 miles to the gallon on the freeway.

Beyond its infamous thirst for gas, sure mannequin years of the Triton V10 had mechanical gremlins. In explicit, early models had the identical finicky spark plug threads because the 4.6-liter modular V8, and all Triton V10s have crack-prone PCV hoses. Still, these points may be simply prevented with correct care, they usually do not detract from the stout total package deal.

The big-block V8 that the Triton V10 changed is one other legendary truck engine recognized for its reliability and longevity. Based on the 385-Series of big-block V8s, the 460 — often known as the “Lima” as a result of it was produced at Ford’s engine plant in Lima, Ohio — did not begin its life in vans. Instead, Ford put in it within the Lincoln Continental Mark III, the place it produced 365 horsepower and 500 pound-feet of torque. But these are gross figures, not web, which means their real-world output is definitely decrease beneath at the moment’s measuring requirements.

Ford later put in the 460 cubic-inch (7.5-liter) behemoth in Ford’s and Mercury’s fill-size automobiles, however its true rise to prominence occurred as soon as it settled in Blue Oval’s vans and vans. In these automobiles, the low-end torque offered wonderful grunt for hauling and towing, with the cast-iron block and head offering sturdiness. On common, these engines final between 200,000 and 300,000 miles. They additionally undergo from a number of points, like warping exhaust manifolds, worn-down timing chains, and oil/coolant leaks. But these are issues that ought to not shock you in outdated, high-mileage engines.

Because of its stout building and big capability, the 7.5-liter Lima V8 can be highly regarded for venture builds. According to Jon Kaase from Jon Kaase Racing Engines (by way of Hot Rod), the 460 may be tuned to 900 horsepower with the inventory block. Heck, the massive bore centerlines permit stroker builds that push the capability to 545 cubic inches (8.9 liters) with that very same block.

Back in 2024, we referred to as the Mustang GT “the last great V8-powered muscle car.” A giant motive for that’s the excellent 5.0-liter Coyote V8, which performs and appears like a muscle automobile engine ought to. It additionally produces 480 horsepower, which will increase to 486 with the efficiency exhaust and as much as 500 within the Mustang Dark Horse. It’s rev-happy, too, redlining at 7,500 rpm.

You certainly would not anticipate such a high-strung naturally aspirated engine to even be dependable, however the Coyote V8 is as bulletproof as high-performance blocks get. Yes, the truth that it makes use of no turbos helps with reliability. But it is also a part of Ford’s modular household, which consists of the 4.6-liter V8 and 6.8-liter Triton V10. Not to say, it options stout internals, like a solid metal crankshaft, powdered metallic connecting rods, and a deep-skirt block with four-bolt major bearing caps.

Although Coyote V8s are all-aluminum engines, pre-2018 fashions had cast-iron cylinder liners. Meanwhile, newer fashions make the most of Ford’s Plasma Transfer Wire Arc (PTWA) expertise, which aids sturdiness whereas maximizing bore spacing. Older, pre-2018 Coyote V8s additionally solely used multi-port injection, whereas newer fashions mix direct and port injection to remove carbon buildup whereas additionally bettering effectivity. But the 5.0-liter Coyote V8 is way over only a high-rpm machine; Ford techs declare it is also essentially the most dependable Ford F-150 engine. Of course, the F-150 model does not rev as a lot, producing 400 horsepower at 6,000 rpm, however it nonetheless has that easy-to-love V8 sound.

Ford/Navistar’s replacements for the legendary 7.3-liter Power Stroke V8 weren’t as much as the identical high quality normal. The 6.0-liter Power Stroke V8 had a reasonably dangerous reliability report, and the 6.4-liter successor wasn’t a lot better, both. However, that each one modified when Ford launched the 6.7-liter Power Stroke V8 diesel. This time, the Blue Oval developed and manufactured the engine fully in-house, packing it with durability-enhancing options — together with a compacted graphite iron deep-skirt block. As a end result, the newest Power Stroke is extremely dependable, matching the fabled 7.3-liter behemoth with a lifespan between 300,000 and 500,000 miles.

Like with most engines, although, early 6.7 Power Stroke years had some points. In explicit, they had been outfitted with finicky Bosch gas pumps and fragile turbochargers. However, as outlined by Driving Line, these points aren’t quite common and are simply preventable utilizing low cost aftermarket add-ons. Newer 6.7-liter Power Stroke diesels are virtually faultless, although, they usually’re additionally extremely succesful. Ford’s newest Super Duty vans are provided with two variations of the Power Stroke engine; the less-potent model produces 475 horsepower and 1,050 pound-feet of torque, whereas the high-output mannequin bumps these numbers as much as 500 and 1,200, respectively. The Power Stroke additionally will get 20 mpg, and with a gooseneck hitch, it may tow an unbelievable 40,000 kilos.