Tap and die sets include a gauge that calculates threads per inch. Select the corresponding die that matches with the reading on the thread per inch gauge, and set the die in the handle that comes with the set.
The IROC-Z model of the Chevrolet Camaro first made its public appearance in 1985 as an add on option to the 1985 Camaro Z28 model. But its origin began long before that. IROC stands for International Race of Champions which is an automobile racing series similar to what NASCAR is.
Chevrolet Chevy II / Nova. The Chevrolet Chevy II/Nova is an automobile manufactured by Chevrolet, and produced in five generations for the 1962 through 1979, and 1985 through 1988 model years. Nova was the top model in the Chevy II lineup through 1968. The Chevy II nameplate was dropped, Nova becoming the nameplate for the 1969 through 1979 models. Built on the X-body platform, the Nova was replaced by the 1980 Chevrolet Citation introduced in the spring of 1979.