8 cyl 6.5l cavalier

About a week ago my father told me that chevy made an 8 cyl 6.5l cavalier i was wondering of anybody nows about this

Chevy Used to make 6.5l motors... It's the same as a 389cu inch. The only way a 389 would fit in a cavalier is with some modifications to the firewall and possibly fenders. Then it'd definately have to have a different rear drive axle for rwd.