The Windsor engine is a 90-degree small-block V8 from Ford Motor Company. The automotive industry is the industry involved in the design development manufacture marketing and sale of Motor vehicles In 2007 more than 73 million motor vehicles Ford Motor Company is an American Multinational corporation and the world's fourth largest automaker based on Worldwide vehicle sales, following A V8 engine is a V engine with eight cylinders mounted on the Crankcase in two banks of four cylinders in most cases set at a right angle to each other The Y-block engine is an Overhead valve V8 Automobile Piston engine from Ford Motor Company. The Ford FE engine was a Ford V8 engine used in vehicles sold in the North American market between 1958 and 1976 The Modular engine is Ford Motor Company 's current high volume Overhead camshaft (OHC V8 and V10 gasoline engine family The cylinder block or engine block is a machined casting (or sometimes an assembly of modules containing cylindrically bored holes for the Pistons of a multi-cylinder An overhead valve (OHV engine, also called pushrod engine or I-head engine is a type of Piston engine that places the Camshaft Fuel is any material that is burned or altered in order to obtain energy A naturally-aspirated engine or normally-aspirated engine (or "N/A" - Aspiration meaning breathing refers to an Internal combustion engine The cylinder block or engine block is a machined casting (or sometimes an assembly of modules containing cylindrically bored holes for the Pistons of a multi-cylinder A V8 engine is a V engine with eight cylinders mounted on the Crankcase in two banks of four cylinders in most cases set at a right angle to each other Ford Motor Company is an American Multinational corporation and the world's fourth largest automaker based on Worldwide vehicle sales, following It was introduced in 1962, replacing the old Ford Y-block engine. The Y-block engine is an Overhead valve V8 Automobile Piston engine from Ford Motor Company. Though not all of the engines in this family were produced at the Windsor, Ontario engine plant (all Ford small blocks came from Cleveland, Ohio until 1966), the name stuck. Windsor is the southernmost city in Canada and lies at the western end of the heavily populated Quebec City-Windsor Corridor. The mid-sized 335 "Cleveland" V8, introduced in 1970, was to replace the larger Windsors, but this design ended up outliving its replacement. The Ford 335 engine family were a group of small-block V8 engines built by the Ford Motor Company between 1970 and 1982 In 1991, the Windsor engine began to be phased out and replaced with Ford's new 4. 6 L modular V8 engine, which was disliked by many because of the overhead cam valvetrain as opposed to the more traditional "muscle car-ish" pushrod V8 with overhead valves that Chevy stuck with in their GM LS engine line. The Modular engine is Ford Motor Company 's current high volume Overhead camshaft (OHC V8 and V10 gasoline engine family An overhead valve (OHV engine, also called pushrod engine or I-head engine is a type of Piston engine that places the Camshaft The LS series is a new design intended as the only V-8 engine utilized in General Motors ' line of RWD cars and trucks In 1996, Ford replaced the popular 5. 0 L pushrod V8 with the 4. 6 L in their flagship vehicle, the Ford Mustang. The Ford Mustang sports coupe, manufactured by the Ford Motor Company, was initially based on the Ford Falcon Its use in production vehicles continued until 1997 in the F-150 and until 2001 in the Ford Explorer. For the 1999-present F-250 and higher models see Ford Super Duty. See also Ford Explorer Sport Trac for the spinoff pickup truck SUV Crossover version The Ford Explorer is a mid-size Sport utility vehicle As of 2008 the Windsor engines including the 351 and 302 (which is technically a Cleveland due to it being produced in Cleveland and NOT Windsor) are still being produced by Ford, available as complete crate motors, from Ford Racing and Performance Parts.

Overview

The Windsor engine uses a thin-wall cast iron block with a separate timing chain cover, made from aluminum. This feature differentiates it from later Cleveland, or 335-series engines, that use an integrated timing cover, cast in the block. All Windsors use 2-valve per cylinder heads regardless of whether they are "2V", "4V", or fuel-injected models. The 2V & 4V designations referred to the number of venturi (or barrels) in the carburetor, not the number of valves per cylinder. The valves are in-line and use straight 6-bolt valve covers.

Another simple differentiator between the Windsor and Cleveland series is the location of the radiator hose — the Windsor routed coolant through the intake manifold, with the hose protruding horizontally, while the Cleveland had the radiator hose connecting vertically to the engine block. The Cleveland and later "Modified" engines used a canted valve design, allowing for larger valves within the same 4" bore. Something worth noting was the fact that the Ford Engineers designed the Cleveland heads with the same bore spacing and head bolt configuration making it possible (with some light machine work) to bolt Cleveland heads to the Windsor block and in 1969 they did just that creating the Boss 302.

The oil routing in the engine block is unique in that a third passage is drilled parallel to the tappet passages. This passage insures that oil reaches the main and cam bearings before the tappets, reducing the likelihood of lubricant starvation of the bearings (unlike the 351 Cleveland and the 385 series). The tappets are fed from and inverted 'V' passage cast in the rear under the intake manifold that connects with this passage and is sealed with steel cap. The third oil passage is visible from the rear of the block with the transmission components removed. It is under and slightly right of the right bank tappet passage. The tappets on the left bank are the farthest from the oil pump and are last to be pressurized by oil upon a dry start. This gives an impression that there is insufficient lubrication, but this is normal and the noise ceases after several seconds of operation.

With the exception of the 289 HiPo, Boss 302 and 351W, all connecting rods use the same 5/16 in. dia. bolts which tend to fail under high RPM operation. It is possible to machine the bolt holes to accept 11/32 inch rod bolts used in the pre-1968 Chevrolet small V8 engines (265, 283, 327) as a remedy. The rod forgings had undergone some changes throughout its history. The 221, 260 and early 289 (C2OZ-A and C3AE-D) rods used an oil squirt hole to lubricate the piston pin and rings. The oil squirt hole was discontinued in 1964. The same forging continued to be used up to 1967 and all were the same length (5. 155 in. ). The 302 used a shorter beam (C8OE-A 5. 090 in. ) but used the same cap up to 1970. In 1971 the cap design was changed from flanged to flat (D1OE-A). This was changed back to the flange design in 1988 due to fatigue failures from increased power output of fuel injection and continued until the end of production. The 289 HiPo and Boss 302 were the same length (5. 155 in) used heavier beam and cap forgings and 3/8 in bolts but were machined differently. The former used square head bolts and square cut and the latter were spot faced for 'football head' bolts.

221

The first engine of this family, introduced for the 1962 model year as an option on the Ford Fairlane and Mercury Meteor, had a displacement of 221 CID (3. 6 L), from a 3. 5 in (89 mm) bore and 2. 87 in (72. 9 mm) stroke, with wedge combustion chambers for excellent breathing. A combustion chamber is the part of an Engine in which Fuel is burned An advanced, compact, thinwall-casting design, it was 24 in wide, 29 in long, and 27. 5 in tall (610 mm × 737 mm × 699 mm). It weighed only 470 lb (210 kg) dry despite its cast iron construction, making it one of the lightest and most compact V8 engines of its day. Cast iron usually refers to grey cast iron, but identifies a large group of Ferrous Alloys which solidify with a Eutectic.

In stock form it used a two-barrel carburetor and a compression ratio of 8. A carburetor (North American spelling or carburettor ( Commonwealth spelling) is a device that blends air and Fuel for an Internal The compression ratio is a single number that can be used to predict the performance of any engine particularly piston engines (but can be used on essentially any Internal-combustion 7:1, allowing the use of regular (rather than premium) gasoline. Valve diameters were 1. A poppet valve is a Valve consisting of a hole usually round or oval and a tapered plug usually a disk shape on the end of a shaft also called a valve stem 59 in (40. 4 mm) (intake) and 1. 388 in (35. 3 mm) (exhaust). Rated power and torque (SAE gross) were 145 hp (108 kW) @ 4400 rpm and 216 lb·ft (293 N·m) @ 2200 rpm.

The 221 was dropped after the 1963 model year.

260

The second version of the Windsor, introduced during the middle of the 1962 model year, had a wider bore of 3. 80 in (96. 5 mm), increasing displacement to 260 CID (4. 3 L). Compression ratio was raised fractionally to 8. 8:1. The engine was slightly heavier than the 221, at 482 lb (219 kg). Rated power (still SAE gross) rose to 164 hp (122 kW) @ 4400 rpm, with a peak torque of 258 lb·ft (350 N·m) @ 2200 rpm.

In 1962 and 1963 valve diameters remained the same as the 221, but starting in 1964 they were enlarged to 1. Year 1963 ( MCMLXIII) was a Common year starting on Tuesday (link will display full calendar of the Gregorian calendar. 67 in. (42. 4 mm) (intake) and 1. 45 in (36. 8 mm) (exhaust). Rated power was not changed.

In 1963 the 260 became the base engine on full-size Ford sedans. Later in the model year its availability was expanded to the Ford Falcon and Mercury Comet. The model year of a product is a number used to describe approximately when a product was produced The Ford Falcon was an Automobile produced by Ford Motor Company from 1960 through 1970 The Mercury Comet was an Automobile produced by the Mercury division of the Ford Motor Company between 1960 and 1977 with the exception of the 1970 model The early "1964½" Ford Mustang also offered the 260, although it was dropped by mid-year, as did the 1964-1966 Sunbeam Tiger. The Ford Mustang sports coupe, manufactured by the Ford Motor Company, was initially based on the Ford Falcon The Sunbeam Tiger was a Muscle car version of the British Rootes Group's Sunbeam Alpine Roadster.

The special rally version of the Falcon and Comet and early AC Cobra sports cars used a high-performance version of the 260 with higher compression, hotter camshaft timing, and a four-barrel carburetor. Rallying is a form of motor competition that takes place on public or private roads with modified production or specially built road-legal cars Shelby Cobra redirects here See also the Shelby Mustang Cobra The AC Cobra was a British built and designed sports car that was A sports car is a term used to describe a class of Automobile. This engine was rated (SAE gross) 260 hp (194 kW) @ 5800 rpm and 269 lb·ft (365 N·m) @ 4800 rpm.

Ford dropped the 260 after the 1964 model year.

289

289 Windsor V8 in a 1966 Ford Mustang

The 289 CID (4. The Ford Mustang sports coupe, manufactured by the Ford Motor Company, was initially based on the Ford Falcon 7 L) Windsor was also introduced in 1963. Bore was expanded to 4. 0 in (102 mm), becoming the standard bore for most factory Windsor engines. The 289 weighed 506 lb (230 kg).

In 1963 the 289 was available in two forms: with a two-barrel carburetor and 8. 7:1 compression, (SAE gross) rated at 195 hp (145 kW) @ 4400 rpm and 258 lb·ft (350 N·m) @ 2200 rpm, and with a four-barrel carburetor and 9. 0:1 compression, rated at 210 hp (157 kW) @ 4400 rpm and 300 lb·ft (407 N·m) @ 2800 rpm. The two-barrel 289 replaced the 260 as the base V8 for full-sized Fords.

Both 1963 and 1964 versions had a five-bolt bell housing pattern that was different from later six-bolt units (Mustangs switched bolt patterns around August 3, 1964).

For 1965 the compression ratio of the base 289 was raised to 9. 3:1, increasing power and torque to 200 hp (149 kW) @ 4400 rpm and 282 lb·ft (382 N·m) @ 2400 rpm. The four-barrel version was increased to 10. 0:1 compression, and was rated at 225 hp (168 kW) @ 4800 rpm and 305 lb·ft (414 N·m) @ 3200 rpm.

Engine specifications were unchanged for 1966 and 1967. In 1968 the four-barrel 225 hp engine was dropped, leaving the two-barrel (now reduced back to 195 hp) and the HiPo. Year 1968 ( MCMLXVIII) was a Leap year starting on Monday (link will display full calendar of the Gregorian calendar. 1968 was the last year of production for the 289.

The 289 was also the engine for the first Ford Falcon GT, the XR GT. (Australia)

289 "HiPo" (K-code)

Ford 289 K-code engine in a Shelby GT 350. The Shelby Mustang is a high performance variant of the Ford Mustang, built by Ford from 1968 through 1970 Note that the radiator hose connects to the intake manifold, a telltale Windsor feature.

A high-performance version of the 289 engine was introduced late in the 1963 model year as a special order for Ford Fairlanes and Mercury Comets. The engine is informally known as the "HiPo" or the K-code (after the engine letter used in the VIN of cars so equipped). Starting in June 1964, it became an option for the Mustang.

The HiPo engine was engineered to increase performance and high-RPM reliability over standard 289 fare. It had solid lifters with hotter cam timing; 10. 5:1 compression; a dual point, centrifugal advance distributor; smaller combustion chamber heads with cast spring cups and screw-in studs; low restriction exhaust manifolds; and a bigger, manual choke 595 CFM carburetor (std 289 4v was 480 CFM). The water pump, fuel pump, and alternator/generator pulley were altered; fewer vanes, extra spring, and larger diameter respectively; to help handle the higher RPMs. Even the HiPo’s fan was unique. Bottom end improvements included thicker main bearing caps and balancer, larger diameter rod bolts, and a hardness tested and counterweighted crankshaft, all for high-rpm reliability. The crankshaft, sometimes casually abbreviated to crank, is the part of an Engine which translates reciprocating Linear The HiPo carried SAE gross ratings of 271 hp (202 kW) @ 6000 rpm and 312 lb·ft (423 N·m) @ 3400 rpm.

The HiPo engine was used in modified form by Carroll Shelby for the 1965-1967 Shelby GT350, raising rated power to 306 hp (228 kW) @ 6000 rpm through use of special exhaust headers, an aluminum intake manifold, and a larger carburetor. Carroll Hall Shelby, (born January 11, 1923 in Leesburg Texas) is an American racing and automotive designer and former racing driver The Shelby Mustang is a high performance variant of the Ford Mustang, built by Ford from 1968 through 1970 The Shelby engine also had a larger oil pan with baffles to reduce oil starvation in hard cornering. Shelby also replaced the internal front press-in oil gallery plugs with a screw-in type plug to reduce chances of failure.

From 1966 to 1968, Shelby offered an optional Paxton supercharger for the 289, raising its power (on Shelby GT350s) to around 390 hp (291 kW). Paxton Automotive is a United States -based manufacturer of Superchargers for Automotive use A supercharger is an air compressor used for Forced induction of an Internal combustion engine.

The K-code HiPo engine was an expensive option and its popularity was greatly diminished after the 390 and 428 big-block engines became available in the Mustang and Fairlane lines, which offered similar power (at the expense of greater weight) for far less cost. The Ford FE engine was a Ford V8 engine used in vehicles sold in the North American market between 1958 and 1976

302

302 "4V" V8 in a 1968 Mercury Cougar

289 "Hi-Po" V8 in a 1967 Ford Mustang

Note that there was also a 302 cubic inch 335 Series engine produced by Ford Australia for the Australian market

In 1968 the small block Ford was stroked to 3. The Mercury Cougar was an Automobile sold under the Mercury brand of the Ford Motor Company 's Lincoln-Mercury Division The Ford Mustang sports coupe, manufactured by the Ford Motor Company, was initially based on the Ford Falcon The Ford 335 engine family were a group of small-block V8 engines built by the Ford Motor Company between 1970 and 1982 0 in (76. 2 mm), giving a total displacement of 302 CID (4. 9 L). The connecting rods were shortened to allow the use of the same pistons as the 289. It replaced the 289 early in the 1968 model year.

The most common form of this engine used a two-barrel carburetor, initially with 9. 5:1 compression. It had hydraulic lifters and valves of 1. 773 in (45 mm) (intake) and 1. 442 in (36. 6 mm) (exhaust), and was rated (SAE gross) at 220 hp (164 kW) @ 4600 rpm and 300 lb·ft (407 N·m) @ 2600 rpm. Optional was a four-barrel version rated at 250 hp (186 kW) @ 4800 rpm.

For 1968 only, a special, high-performance version of the 302 was offered for the Shelby GT350. Its main features included an angled, high-rise intake manifold (aluminum or cast iron), larger four-barrel carburetor, and bigger valves, 1. 875 in (47. 6 mm) (intake) and 1. 600 in (40. 6 mm) (exhaust). It had a longer-duration camshaft, still with hydraulic lifters. The block was a high-strength, "Hecho en Mexico" design, with larger, two-bolt main bearing caps. The United Mexican States ( or commonly Mexico (ˈmɛksɪkoʊ () is a federal constitutional Republic in North America. The heads had special, close pushrod holes to increase airflow. Additionally, high flow cast exhaust manifolds (similar to the 289 HiPO K-code's) further improved the engine's efficiency. Heavy duty connecting rods and a nodular iron crankshaft were also included in this HIPO package. Rated power (SAE gross) was estimated at 315 hp (235 kW) @ 5000 rpm and 333 lb·ft (451 N·m) @ 3800 rpm. The package, which cost US$692 (including some other equipment), was quite rare, and did not return for 1969. This engine was not a factory engine. Like all Shelby Mustang engines, it was modified 'in house' by Shelby American, in their capacity as a vehicle upfitter, similar to a conversion van company.

Emissions standards saw a progressive reduction in compression ratio for the 302 two-barrel, to 9. Emission standards are requirements that set specific limits to the amount of Pollutants that can be released into the environment 0:1 in 1972, reducing SAE gross horsepower to 210 hp (157 kW). In that year U. S. automakers began to quote horsepower in SAE net ratings; the 302 two-barrel carried a net rating of 140 hp (104 kW). By 1975 its power would drop as low as 122 hp (91 kW). Not until fuel injection began to appear in the 1980s would net power ratings rise above 200 hp (149 kW). Fuel injection is a system for mixing fuel with air in an Internal combustion engine.

Throttle body fuel injection first appeared for the 302 on the Lincoln Continental in 1980, and was made standard on all applications in 1983 except manual transmission equipped Mustangs and Capris, equipped first with two-barrel(1982), then later 4-barrel carburation(1983-85) The block was fitted with revised, taller lifter bosses to accept roller lifters, and a steel camshaft in 1985, and electronic sequential fuel injection was introduced in 1986. Fuel injection is a system for mixing fuel with air in an Internal combustion engine. The Lincoln Continental, an automobile produced by the Lincoln division of Ford Motor Company, began for the 1939 model year Year 1980 ( MCMLXXX) was a Leap year starting on Tuesday (link displays the 1980 Gregorian calendar) While sequential injection was used on the Mustang since 1986, many other vehicles, including trucks continued to use a batch fire fuel injection system. The speed-density based EFI systems used a large, two-piece, cast aluminum manifold. It was fitted on all engines through 1988, after which year it was replaced by a mass-air type measuring system, with the same manifold. The MAF system continued, with minor revisions, until the retirement of the engine in 2001.

The 302 was also offered for marine applications in both standard and reverse rotation setups.

In the 1980s the 302 became more commonly known as the 5. 0 Liter, although its metric displacement (4942 cc) accurately rounds to 4. 9 L. It is speculated that the "5. 0" moniker was chosen to distinguish the 302 from the 300 in³ inline Six, which was known as the 4. 9. Despite its advertised displacement, some automotive magazines referred to the 302 – correctly – as a 4. 9 liter engine.

The 302 remained a mainstay of various Ford cars and trucks through early 2001, although it was progressively replaced by the 4. 6 L Ford Modular engine starting in the early 1990s. The Modular engine is Ford Motor Company 's current high volume Overhead camshaft (OHC V8 and V10 gasoline engine family The last 5. 0 L engine was produced for installation in a production vehicle was at Cleveland Engine Plant #1 in December 2000, as part of a build ahead to supply Ford of Australia, who installed their last 5. 0 engine in a new vehicle in August 2002. The 302/5. 0 is still available as a complete crate motor, from Ford Racing and Performance Parts.

Ford Australia also built some stroked, 5. 6 L Windsors. With alloy heads and roller rockers they produced 335 hp (250 kW) and 369 lb·ft (500 N·m).

Boss 302

Boss 302 engine

Main article: Ford Boss 302 engine

The Boss 302 was a performance variant of the Windsor, putting what would become Cleveland heads on a special, heavy duty, 4 bolt main Windsor block to improve rated power to 290 hp (216 kW). The Boss 302 engine is a high-performance Small-block V8 from Ford Motor Company. The Ford 335 engine family were a group of small-block V8 engines built by the Ford Motor Company between 1970 and 1982 According to some reports, the canted valve, deep breathing, high revving engine could produce more than 310 hp (231 kW), although as delivered, it was equipped with an electrical rev limiter that restricted maximum engine speed to 6150 rpm. A bulletproof bottom end, thicker cylinder walls, steel screw-in freeze plugs, race prepped crank, special HD connecting rods and Cleveland style forged pistons kept the engine together at high speeds. Freeze plug is a misnomer for Core plug or expansion plug and is commonly referred to as a " frost plug. The key to this engine's power was the large port, large valve, quench chambered, free flowing heads. The Boss 302 Mustang was offered only for the 1969 and 1970 model years. The Boss 302 Mustang was a Ford Mustang high performance variant produced in 1969 and 1970

The Boss 302 could be built by just about anyone as the Cleveland heads will bolt up to a standard Windsor block. By blocking a coolant passage on the face (combustion side) of the head and opening a passage on the intake side the heads will operate just as a Boss 302 head. A special intake manifold is needed, either one from a Boss 302 or from an aftermarket supplier. At one point there was at least one company making the special intakes in both open and split plenum design.

351W

351 Windsor V8 in a 1969 Ford Mustang

The 351W is often confused with the 351 Cleveland, which is a different engine of identical displacement

The 351 CID (5. The Ford Mustang sports coupe, manufactured by the Ford Motor Company, was initially based on the Ford Falcon The Ford 335 engine family were a group of small-block V8 engines built by the Ford Motor Company between 1970 and 1982 8 L) Windsor featured a 1. 3 in (32. 5 mm) taller deck height, allowing a stroke of 3. 5 in (88. 9 mm). Although related in general configuration to the 289-302 and sharing the same bell housing, motor mounts and other small parts, the 351W had a unique, tall deck block, larger main bearing caps, thicker, longer connecting rods, and a distinct firing order (1-3-7-2-6-5-4-8 vs. 1-5-4-2-6-3-7-8), adding some 25 lb (11 kg) to the engine's dry weight. The distributor is slightly different to accommodate a larger oil pump shaft and larger oil pump. A distributor is a device in the Ignition system of an Internal combustion engine that routes High voltage from the Ignition coil to the Some years had threaded dipstick tubes. It had a unique head which optimized torque over high-rpm breathing, frequently replaced by enthusiasts with aftermarket heads providing better performance. Ford offered a performance head that was a stock part on 302 equipped mid 1990's Mustangs called the GT-40 head (casting id F3ZE-AA). The Ford Mustang sports coupe, manufactured by the Ford Motor Company, was initially based on the Ford Falcon Casting is a manufacturing process by which a liquid material is (usually poured into a mold which The early 1969 and 1970 heads had larger valves and ports for better performance. The intake valves and ports were slightly larger on the early engines. The head castings and valve head sizes from 1969 to 1976 were different, differing in passages for air injection and spark plug diamaters (69-74 18mm, 75-up 14mm). From 1977 onward, the 351W shared the same head casting as the 302, differing only in bolt hole diameters (7/16 inch for 302, 1/2 inch for 351W). Early blocks (casting id C9OE-6015-B had enough metal on bearing saddles 2,3 and 4 for four bolt mains) as with all SBF, were superior in strength to most late model, lightweight castings. During the 1980's a four barrel version (intake manifold casting id E6TE-9425-B) was re-introduced for use in light trucks and vans. In 1988 fuel-injection replaced the four barrel carburetor. Fuel injection is a system for mixing fuel with air in an Internal combustion engine. Roller lifters were introduced in this engine in the early 1990s.

The original connecting rod beam (forging id C9OE-A) featured drilled oil squirt bosses to lubricate the piston pin and cylinder bore and rectangular head rod bolts mounted on broached shoulders. A forge is the workplace of a smith or a Blacksmith. A forge is sometimes referred to as a smithy. There were a number of fatigue failures attributed to the machining of the part and so the bolt head area was spot-faced to retain metal in the critical area, requiring the use of 'football head' bolts. In 1975, The beam forging (D6OE-AA) was updated with more metal in the bolt head area. The oil squirt bosses were drilled for use in export engines, where the quality of accessible lubricants was questionable. The rod cap forging remained the same on both units (part id C9OE-A). In 1982, the design of the Essex V6 engine used a new version of the 351W connecting rod (E2AE-A), the difference between the two parts was that the V6 and V8 units was machined in metric and SAE units respectively. See also Ford Essex V6 engine (UK The Ford Essex V6 engine was a 90° V6 engine family built by Ford Motor Company at the SAE International (SAE is a professional organization for mobility engineering professionals in the Aerospace, Automotive, and commercial Vehicle industries The cap featured a longer boss for balancing than the original design.

The block underwent some changes since its inception. In 1972, The deck height was extended from 9. 480 in. to 9. 503 in. (casting id D2AE-B) to lower the compression ratio to reduce NOx emissions without the need to change piston or cylinder head design. The term nitrogen oxide typically refers to any Binary compound of Oxygen and Nitrogen, or to a mixture of such compounds Nitric In 1974 a boss was added on the front of the right cylinder bank to mount the air injection pump (casting id D4AE-A). In 1979 the oil dipstick tube moved from the timing case to the skirt under the left cylinder bank near the rear of the casting. These details made swapping older blocks from passenger cars with front sump oil pans to more recent rear-sumped Mustang and LTD/Crown Vic Ford cars more difficult unless an oil pan had the dipstick mounted therein. The Ford Fox platform was a Rear wheel drive, Unibody automobile architecture that Ford used for 26 years in the North American market The Ford Panther platform is one of Ford Motor Company 's full-size, Rear-wheel drive sedan Automobile platforms the other is In the 1990's the rear main seal was changed from a two-piece component to a one-piece design and provisions for roller tappets were also added.

Introduced in 1969, it was initially rated (SAE gross) at 250 hp (186 kW) with a two-barrel carburetor or 290 hp (216 kW) with a four-barrel. When Ford switched to net power ratings in 1972 it was rated at 153 to 161 hp (114 to 120 kW), although actual, installed horsepower was only fractionally lower than in 1971.

During the 1990's, motor enthusiasts were modifying 351 Cleveland 2V cylinder heads (by re-routing cooland exit from the block surfaces to the intake manifold surfaces) for use in the 351W resulting in the Clevor (a portmanteau of Cleveland and Windsor). The Ford 335 engine family were a group of small-block V8 engines built by the Ford Motor Company between 1970 and 1982 This modification requires the use of custom pistons by reason of differing combustion chamber terrain (canted valves vs. straight valves) and intake manifolds for the Boss 302 was not wide enough and the intake ports were too large. This combination yielded the horsepower potential of the 351C with the ruggedness of the 351W short block. This was possible because more 351C 2V cylinder heads were made than corresponding engine blocks (the 351M and 400 used the same head as the 351C 2V).

255

In 1980, an urgent need to meet EPA CAFE standards led to the creation of the 255 CID (4. 2 L) version, essentially a 302 with the cylinder bores downcored to 3. 68 in (93. 5 mm). Rated power (SAE net) was 115-122 hp (86-91 kW), depending on year and application. Cylinder heads used smaller combustion chambers and smaller valves and the intake ports were ovals whereas the others were rectangular. The only externally visible cue was the use of an open runner intake manifold with a stamped steel lifter valley cover attached to its underside, giving the appearance of previous generation engines, such as the Y-Block and the MEL. The Y-block engine is an Overhead valve V8 Automobile Piston engine from Ford Motor Company. Ford developed the MEL ("Mercury-Edsel-Lincoln" engine series for use in their line of Mercury models from 1958 through 1967 It was optional in Fox chassis cars including the Mustang and corporate cousin Mercury Capri, Thunderbird, Fairmont, and standard equipment in the Ford LTD. The Ford Fox platform was a Rear wheel drive, Unibody automobile architecture that Ford used for 26 years in the North American market Poorly received thanks to its dismal performance and mediocre fuel economy, it was dropped after the 1982 model year, and is considered one of the worst modern Ford engines.

See also

• List of Ford engines

External links

• 302w.com - Website & Forums dedicated to the Ford Windsor Engine
• Short descriptions of Ford overhead valve V8 engines
• Pirates Of Horsepower - blog on building a 351w Ford stroker