Stunning 1965 Ford Mustang "K" Code Fastback! VIN: 5F09K366789 * 5 = 1965 * F = Dearborn Assembly Plant * 09 = Fastback * K = 289 4V Hi-Performance Data Plate: * Body - 63A Fastbac, Standard Interio, Bucket Seats * Color - X - Vintage Burgundy Poly * Trim - D6 White With Black * (Build) Date - 25L - November 2, 1964 * DSO - Chicago * Axle - 5 - 3.50 * Trans - 4 Speed Manual Today, some 46 years later, the K-code "Hi-Po" Mustang is still... one of the most sought after classic Mustangs. With just three years of production and around 13,000 produced makes the K-code very rare. The K-Code engine was first made available to Mustang buyers in June of 1964, about two months after the original 1964.5 model (which was technically a 1965 Mustang) was unveiled. In addition to the upgraded engine, buyers who chose the K-Code option also received a special handling package and dual red-stripe tires. Ford marketed the K-Code engine as a way for Mustang owners to enjoy a sports car performance that matched the Mustang's sports car styling. Ford also suggested the K-Code would appeal to buyers who were interested in participating in competitive events such as rallies. Less than one percent of the approximately 1.7 million Mustangs produced during its first three years of existence were actually equipped with a K-Code engine, and Ford did not offer the K-Code after 1967. The K-Code, however, did help pave the way for more robust Mustang engines of the future, such as the Cobra Jet and Boss. The relative scarcity, combined with its legacy as the first truly high-performance engine available with the Mustang, makes a K-Code Mustang a highly sought-after vehicle by classic car collectors. Buyers of the GT Equipment Package on their Mustangs could add the K-code option to their new ride for an extra $276 back in 1965. The cost to add this engine to new Mustangs without the GT package was $328. Why was it called "K-Code?" The "K" stood for the engine code on the VIN number of these Mustangs. The K-Code engine was first introduced by Ford in 1963 and was featured in cars such as the Fairlane and the Comet. Each K-Code Mustang had a special badge on their front fenders that read "HIGH PERFORMANCE 289â€. No doubt about it, the K-Code Mustang was all performance. In fact, K-Code Mustangs were not available with air conditioning or power steering. And you couldn't buy one with an automatic transmission until the 1966 model year. Prior to that, the K-Code Mustangs had only four speeds. The car also came with a shorter warranty than the typical Mustang. K-Code buyers were looking at a three-month or 4,000-mile warranty instead of the standard 12-month or 12,000-mile warranty plan. People often ask how the K-Code engine was different from the other 289 engines that fell under the D, C and A codes produced from 1965 to 1967 Mustangs. For starters, this engine featured upgraded pistons, cylinder heads, carburetor, lifter heads, and connecting rods. In addition, one look under the hood and you'd notice the chrome air cleaner and valve covers. There was also letting on top of the air cleaner that read " 289 High Performance." With an estimated 271-hp engine on board, it was easy to tell this car from other 289 powered Mustangs of the day. The differences didn't stop there. In fact, the entire driveline of these cars was designed for performance. We're talking about a high-performance clutch, drive shaft, rear differential, and suspension. It's no wonder Shelby put the engine in his racing performance GT350 Mustangs. In fact, the first Shelby Mustang, the Shelby GT350Rfeatured a modified K-Code engine. These days, collectors of the Ford Mustang look back fondly on the K-Code. As such, these are highly sought-after Ford Mustang models and many collectors are on the hunt for them. Unfortunately, only a limited number of these engines were produced between 1963 to 1967, and there were even fewer K-code Mustangs (only about 13,214 were made). If you own one, you own a valued piece of Mustang history and have a prized classic car commodity on your hands. This is a very nice example of a rare 1965 Ford Mustang Fastback "K" Code 289 Hi-Performance four speed with a Ford nine inch rear end. The car has the correct C5AE6015E Block and the correct HIPO Heads 19 & 20. Finished in the correct "X" code paint color "Vintage Burgundy poly" a long with black standard interior. The paint is show like qualit, the body is straight with excellent body lines. This is a very strong running car that drives straight down the road with authority and everything on the car works. The car is priced to sell so call 314-594-1404 to purchase or with any questions. 314-594-1404