Do any 1991 camaro rs have a 5.7 liter engine?
No, 1991 Camaro RS models did not come with a 5.7L engine. The largest engine option for a 1991 Camaro RS was the 3.1L V6. The 5.7L (350 cubic inch) V8 was available in the IROC-Z and other higher-performance Camaro models that year, but not the RS.