1964 - 1968

The Mustang, introduced in April 1964, was built on the Falcon’s platform and came with a Falcon suspension--soft springs and four-wheel drum brakes.  The '64½ was actually considered a '65 by Ford, but many people now use the terms to differentiate changes made by Ford after mid-August 1964. At this time there were engine changes, the Mustang switched from a generator to an alternator plus interior and exterior color revisions.

It was originally offered with three engines—a 170 C.I. six cylinder, a 260 C.I. 2 bbl V8 or a 289 C.I. 4 bbl V8 and came with a three-speed, four-speed or automatic.

In ’65 the 170 six and 260 V8 were dropped for a 200 six and a 289 2bbl V8.

A GT package available on the two versions of the 289 4bbl V8's tightened up the suspension. The High Performance 289 helped straight-line fun with a gross HP rating of 271, probably about 200 net.

In ’65 the first Shelby prepped Mustang, the GT350, became available.  The early Shelbys were the most race-like of the Shelby Mustangs.  In later years they were done in house by Ford and and lost some of their sporting edge.  Shelby built an average of 2,000 cars a year from 1965 to 1970.  The '65 Shelby GT350 came with a 306 HP version of the HiPo motor.  In '66 a 400 HP supercharged version was also available.

Prices?  The base price upon introduction was $2320 (6-cylinder).  A '65 fastback "K code" GT with a 4-speed (271 HP engine package and the GT handling package) was less than $3200. A GT350 was $4550.  The base price of a Corvette was $4320.  The GT was a $150 dollar option that included quick ratio steering, front disc brakes, dial gauges and foglights.

1967-68

The Mustang grew about 2 inches in length and width.  The engine compartment was able to take a big block now. This was in response to the pony car competition--the Camaro SS 396.  

A 390 C.I. V8 was offered in ’67 and the 428 in ’68. The 390 didn't match the Camaro's power, but the 428 did.  The 428's HP rating of 335 was very conservative in order to "fool" the insurance companies (it was dyno'ed at the time to be about 400 HP).  These big blocks had lots of torque and HP, but the cars were nose heavy and didn't handle as well as the 289’s.

Before the 428 came along a race bred 427 was offered for a short while, but this engine was too expensive to build and maintain.

In ’68 the 289 was stroked to 302 to help keep HP up as smog controls were already starting to eat at the power. Thus, the mighty 5.0L (actually 4.9L, a true 5.0L is 306ci) was born.

The Shelby offered the 428 in '67 as a GT500.  In late '68 the GT500KR (King of the Road) came out with the Cobra Jet version of the 428.  The 428CJ was mostly the work of Tasca Ford, a dealer in Providence, RI.  The car dominates the NHRA "stock" classes. This engine is one of the most sought after Ford engines.