Chevrolet Corvette (C3) ZR1 1970

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Power: 370 HP
Torque: 380 ft-lb
Although it would be another 20 years before the Corvette ZR1 would earn the title of King of the Hill, its predecessor set the bar high in terms of performance. In 1970 Chevrolet introduced this limited production radio delete car to the racing world. Dubbed the ZR1 based on the name of its RPO package, this successor to the L88 Corvette came equipped with the potent LT1 350 ci 370 hp small block and all the specialty options that were found on the L88s that were retired the previous year.

In addition to the LT1, the ZR1 package included an M22 rockcrusher 4-speed heavy duty transmission, J56 Heavy duty power brakes, transistorized ignition, special aluminum radiator and a suspension that included special springs, shocks and front and rear stabilizer bars.

Production of the ZR1 was limited to 1970-1972, the same three year time span of the LT1 engine. During that three year run, only 53 cars were ordered with RPO ZR1: 25 in 1970, 8 in 1971 and 20 in 1972. The ZR1’s of the 1970’s are the rarest small block Corvette ever produced.

Source: http://www.corvetteblogger.com/2008/09/23/Rarest-Corvette-Small-Block-The-197072-Corvette-ZR1/
 
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