General Motors option code
Z20
Z20: a General Motors factory option code reused for more than one part across 1970–1971 and 2 models — see the table for what it named each year, with installs and price where a source states them.
General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.
2 models · 2 model years · 2 sources
Every sourced appearance
| Year | Model | As named that year | Price | Installs |
|---|---|---|---|---|
| 1970 | Chevrolet Chevelle and Malibu SS | Monte Carlo SS RPO | $420.25 | 3,823 Reported |
| 1970 | Chevrolet Monte Carlo SS | Monte Carlo SS (SS 454) RPO | $420.25 | 3,823 Reported |
| 1971 | Chevrolet Chevelle and Malibu SS | Monte Carlo SS 454 (context; not a Chevelle SS) RPO | $484.50 | 1,919 Reported |
| 1971 | Chevrolet Monte Carlo SS | SS454, Monte Carlo RPO | $484.50 | 1,919 Reported |
| 1971 | Chevrolet Monte Carlo SS | Monte Carlo SS equipment: 365-hp (285 SAE net) Turbo-Jet 454 V8 with Turbo Hydra-matic only and 3.31 axle; special front and rear springs, heavier shocks, 8.875-in ring gear, dual 2-1/4-in exhaust, larger radiator, heavier battery, 15x7 Rally wheels, automatic level control, higher-performance starter, deep-cover fuel pump and vapor return, heavier front and added rear stabilizers RPO | Unknown | Unknown |
Every row traces to the source it links from on that model's own year page; this table only collects them in one place.