The Ford Mustang Mach 1 is a performance-oriented option package [1] of the Ford Mustang muscle car, originally introduced in August 1968 for the 1969 model year. It was available until 1978, returned briefly in 2003, 2004, and most recently in 2021. Ford offered the Super Cobra Jet version of the 429. The 429 Super Cobra Jet (429SCJ) was fitted with a Holley 735 cu ft/min (20.8 m3/min) 4-bbl carburetor, larger mechanical camshaft, and a four-bolt main block. The engine output was increased to 375 hp and 450 lb-ft of torque, coming with a 3.91:1 or 4.30:1 rear axle ratio. The 302 Windsor remained as the base Mach 1 engine. There were again three 351 Cleveland engine options for ’72. A 2 barrel, the 4 barrel 351CJ and a new for ’72 R-code 351HO, essentially a lower compression Boss 351 engine. 1971 Ford Mustang Mach 1. The Mach 1 received some significant appearance updates for 1973. The “Twister Special” were Mach 1’s with Grabber Orange paint and the “Sidewinders” were available in Grabber Green, Grabber Blue, Calypso Coral and Yellow. Silver Jade Poly. [Shelby Mustang Carry Over Color] Medium Bright Blue Poly. Bright Yellow (Grabber Yellow) [Shelby Mustang Carry Over Color] Black Jade Poly. Conclusions. Most of the 1976 Ford Mustangs are still most renowned and fantastic cars. Thus, even the stickers for 70’s Mustangs costs around $3000 approx. However, an overall perspective for the mustangs was their stylish looks. However, its charm always leads to sparkling eyes for its buyers. by Sandy. The Mach 1 had a great first year in 1969 and was back as a 1970 model. The Mach 1 was a fantastic-looking car and continued to be a very strong seller. In its second year, it sold 40,970 units which were almost 22% of all Mustang sales for the year. All first-generation Mach 1’s are distinguished by the body style code 63C on the door data This is the only “Twister Special” test vehicle Ford ever made, it was developed to test out and showcase the rare Twister Special option package for the 1970 Ford Mustang Mach 1 that was only available in the Kansas City sales district. Just 96 examples of the Twister Special Mach 1 would be built, 48 had the R-code 428 Cobra Jet V8 and 2021 Ford Mustang Mach 1 Production Numbers. 2021 production numbers have yet to be published, as YU78eI.