Sometimes being blamed for other peoples mistakes can follow you thru life. Just ask Al Gore. The poor Monza was blamed for the debacle known as the Vega. To be honest the Chevy Monza was not a bad car.
The problem was that under its swoopy skin was a umm Vega. By this time GM had fixed the oil seeping 140 cubic inch four cylinder and had enough brains to offer other engines. The original plan for the Monza was to install a Rotary or Wankel engine but that proved to be to costly and would not pass emissions. Chevy’s Big Guy Bob Cole opted for engines ranging from the 140 cube 4 banger up to a engine bay filling 262 cubic inch Small Block V8. Chevy did at the factory what Hot Rodders had been doing for years. Stuffing a V8 in a Vega. Good idea even if you had to raise the engine to change the two back spark plugs. One special model you could get was the Monza Spyder. When you checked the Z01, Z02, or Z29 option boxes you could build a very special Monza Spyder. With the Z29 option you got special graphics, blacked out trim, sport suspension and spyder interior trim. In the 1/4 mile a 1979 Monza Spyder with the auto trans could sprint it in 15.87 seconds. Fast for a smogified car of the late 1970′s. Chevy sold over 700,000 Monza’s between 1975-1980. Only 10% were the Spyder version. Since most of these were raced and discarded very few have survived. In most cases that helps in value but in this case being the Un-Vega has made these cars almost valueless. Almost. Our feature 1979 Chevrolet Monza Spyder has the Z29 option code, the 262 Small Block V8, auto trans and factory Spyder graphics. It is a low mile (34,218) original car. What’s It Worth?