close-ratio four-speed manual, the heavy-duty M-22 "Rock Crusher" four-speed manual, or the three-speed Turbo-Hydramatic 400 automatic transmission. A total of 5,571 SS coupés were produced for 1968. Novas sported the SS badge until 1976. Front disc brakes were optional on the 1968 Nova SS. 1969–1972 For 1969 the Chevy II nameplate was retired, leaving the Nova nameplate. The "Chevy II by Chevrolet" trunklid badge was replaced with "Nova by Chevrolet" and the "Chevy II" badge above the grille was replaced with the bowtie emblem and the 1969 model was promoted under the Nova model name in Chevrolet sales literature. As with other 1969 GM vehicles, locking steering columns were incorporated into the Nova. Simulated air extractor/vents were added below the Nova script, which was relocated to the front fender behind the wheel-well instead of the rear quarter panel. The V8 with four-barrel carburetor that came standard with the SS option was revised with a increase to , while a two-barrel carbureted version of the V8 rated at was a new option on non-SS models. The SS option price remained US$312 A new Turbo-Hydramatic 350 three-speed automatic was made available for non-SS Novas with six-cylinder and V8 engines, although the older two-speed Powerglide continued to be available on the smaller-engined Novas. 1969 SS models were the first Nova SS models to have standard front disc brakes. The 1970 Nova was basically a carryover from 1969. The side marker and taillight lenses for the 1970 Nova were wider and positioned slightly differently. This was the final year for the SS396 (actually, a 402 cubic in. engine now). All other engines were carried over including the seldom-ordered four-cylinder which was in its final year. The car finally became simply the Chevrolet Nova this year after two years of transitional nameplates (Chevy II Nova in 1968 and Chevrolet Chevy Nova in 1969). Out of 254,242 Novas sold for 1970, 19,558 were the SS 350 or SS 396 version. Approximately 177 Central Office Production Order (COPO) Novas were ordered, with 175 converted by Yenko Chevrolet. The other two were sold in Canada. The Nova was used in Trans-Am racing this year. Year 1971 Novas were similar to the previous year. The engine was replaced with the in the SS model. 1971 also saw the introduction of the Rally Nova, a trim level that only lasted two years (until it resurfaced in 1977). The Rally kit