The Beginning      The Ford Mustang first came alive on April 17, 1964 at the World's Fair in New York City.  The new sports car by Ford carried two distinct engines: 1. The 101 hp, 170 ci. six cylindyer and 2. The 271 hp, 289 ci. eight cylinder.  The new car debuted at a base price of $2,368, with other options available, and a total of 121,538 cars produced (92,705 hardtops, 28,833 convertibles).       In 1965 the Mustang was hardly changed except for some engine replacements and other mechanics of the car.  The 170 ci. was replaced with a new 200 ci. 200 hp six cylinder, with a total of 559,451 cars produced during the model year.  This was the first year that Carrol Shelby went to work designing his self named powerful Mustangs starting with the Shelby GT-350.  The GT-350 used Ford's base 289 ci. 271 hp engine,  and modified it to gain an extra 35 horsepower, to make it reach 306 hp right off the showroom floor.      1968 saw the introduction of the new 320 hp 390 ci. four barrel engine, also new additions included: improved suspension, new luxury options, and the sunken headlight effect.      Mach I and Boss were the new words in Mustangs in 1969.  The new Boss Mustangs came with an unbelieveably huge 429 ci. 375 hp engine, while the Mach I's came with 351 ci. 2V 250 hp. engine standard but could be upgraded to the 351 ci. 4V 290 hp. engine.                                               DEATH TO THE MUSTANG ERA 1974-1978      1974- With rising gas prices, and even gas outtages, Ford took this into plan while designing the 1974 "Mustang II."  This almost repulsive looking Mustang came with a 2.3 Liter four cylinder in an effort to save gas.  Somehow, despite the redesign and the 2.3 Liter four cylinder engine the Mustang II outperforms expectations and 385,993 are made and sold.       1975-The Mustang II gets a needed V8.  The new 302 ci. detuned to 122 hp is now available as an option, only 188,575 Mustang II's are sold for the year.      1976- As a sort of bonus to 1976 buyers the 302 ci. V8 increases it's horsepower from 122 to 139 hp.  A Cobra II package is introduced by Motor Town Corp. which includes a front air dam, a nonfunctional hood scoop, and a base color of white with blue racing stripes.      1977/1978- Cobra II package remains in tact, no other changes noteable.                                              5.0 Craze 1979-1993      The 5.0 craze started in 1979 with a 302 ci. cmall block 2 barrel version that only produced 130 hp @3400 rpm.  The new 5.0 engine for 1982 saw an increase in horsepower to 157 @4200 rpm.  By 1985, Ford techs had bumped up the horsepower a little more with the addition of the 4 barrel to 210 hp.  In 1986, Ford moved it's 5.0 engine to fuel injection or EFI system.  The new engine suffered a setback in horsepower with only 200 hp. stock.  Then in 1987, the most famous of the 5.0 engines and body designs was produced.  This new engine produced 225 hp @4000 rpm, while also producing 300 lbs./ft. of torque @3000 rpm.  This engine was used until 1992, when in 1993, a newer version of the 5.0 was produced that only put out 205 hp @4200 rpm and only lbs./ft. 275 of torque @3000 rpm.      The Fox bodied design which is somtimes used to refer to the 5.0 Mustang, had two distinct body style periods.  The first styling was from 1979-1986, which can be seen by its inset headlights.  The other body styling is from 1987-1993, in which the Mustang gained the great appearance of having flush headlights with the front bumper.  The GT's of this period looked more boxy than the GT's of old, thanks to ground effects and a lower back bumper, and the addition of fog lamps on the front.  The GT's of old looked more like the LX's of 87-93 due to the spoiler that looked almost identical.  The last of the Fox bodied Mustangs were produced in 1993, which also saw the first year of the new SVT Cobra.  The new Cobra also had a base 5.0 engine, but was more powerful than regular 5.0 engines.  The Cobra could attain 235 hp @4200 rpm stock, while the other 5.0's of 1993 could only produce 205 hp @ 4200 rpm stock.