and the new LA four-barrel was released. The 383 Super Commando engine was upgraded with the intake manifold, camshaft, and cylinder heads from the Road Runner and Super Bee, but the more restrictive exhaust manifolds specific to the A-body cars limited its output to . Also in 1968, Chrysler made approximately fifty fastback Barracudas equipped with the Hemi for Super Stock drag racing. These cars were assembled by Hurst Performance and featured items such as lightweight Chemcor side glass, fiberglass front fenders, hood scoop, lightweight seats, sound deadener, and other street features such as rear seats omitted. An included sticker indicated that the car was not for use on public roads; it could run the quarter-mile in the mid-tens in 1968. For the South African export market, a high-performance version of the 225 slant-6 called Charger Power was offered with 9.3:1 compression, two-barrel carburetor, more aggressive camshaft, and low-restriction exhaust system. A handful of Savage GTs were also built from the second-generation Barracuda. 1969 In 1969, Plymouth placed an increased emphasis on performance. A new option was the Mod Top, a vinyl roof covering with a floral motif, available in 1969 and 1970. Plymouth sold it as a package with seat and door panel inserts done in the same pattern. The 1969 version of the 383 engine was upgraded to increase power output to , and a new trim package called 'Cuda was released. The 'Cuda, based on the Formula S option, was available with either the 340, 383 and, new for 1969, the 440 Super Commando V8. Third generation (1970–1974) 1970-1971 The redesign for the 1970 Barracuda removed all its previous commonality with the Valiant. The original fastback design was deleted from the line and the Barracuda now consisted of coupe and convertible models. The all-new model, styled by John E. Herlitz, was built on a shorter, wider version of Chrysler's existing B platform, called the E-body. Though sharing its platform with the newly launched Dodge Challenger, no exterior sheet-metal interchanged between the sibling cars. The Challenger, at , had a wheelbase that was longer, and a body longer than the Barracuda's. The E-body Barracuda was now "able to shake the stigma of 'economy car'." Three versions were offered for 1970 and 1971: the base Barracuda (BH), the luxury oriented Gran Coupe (BP), and the sport model 'Cuda (BS). Beginning mid-year 1970, and ending with the 1971 model, there