Built by the engine pros at Demon Engines, our 289 consisted of a late-model 5.0L block stuffed with a 2.87-inch 289 crank, 5.155-inch factory rods (with ARP rod bolts), and Probe Racing forged Dimensions & Weight. The 1971 saw another major restyling change for the Mustang. The new Mustang was more than two inches longer and almost two and a half inches wider than it’s 1970 predecessor. For the first time since the Mustang’s inception, the wheelbase was extended one inch to 109″. Description. All 2010 Mustangs get new, curvier sheetmetal over bigger shoulder pads. The Shelby GT500 gets mostly the same, plus a distinct face and an aluminum hood gouged by a single large heat vent. A Well, Ford has yet to release the final rating, but said the new GT500 delivers at least 700 horsepower. That's 38 horses more than the old GT500, rated at 662 horsepower and 631 pound-feet, but The 1965 Ford Mustang Shelby GT350 featured a 289-CID K-Code engine variation, capable of harnessing 306 hp. Carroll Shelby’s Cobras dominated even the Corvettes of the time. In 1965, this Shelby creation won the World Manufacturers’ GT Championship, defeating Ferrari and still holding the distinction of being the only American vehicle Large Sport Sedans. Compare the 2021 Ford Mustang with the 2020 Ford Mustang: car rankings, scores, prices and specs. 1965. No discussion of the GT350 is complete without a deeper dive into the original Ford Mustang on which it was based. The full year of 1965 Mustang production introduced the fastback body style, was priced between the affordable hardtop and convertible, and sported a wildly sloped roofline with unique rear glass and decklid. 2004 Ford Mustang SVT Cobra. Supercharged Convertible. CarGurus Instant Market Value. $39,865. 14 listings nationwide. Shop. 2022 Ford Mustang Shelby GT500. Fastback RWD. CarGurus Instant Market Value. sh4Cjbg.