Cousin to the Chevy Nova on the X-body platform, the Olds Omega was introduced for 1973. Body styles included a coupe, a sedan, and a hatchback coupe. For power, a 250 Chevy I-6, a 350 Olds 2bbl V8 or a 350 4bbl V8 were available. Shifting was left up to a 4-speed manual or a 3-speed automatic on the V8, or a 3-speed manual or 2-speed automatic on the I-6. For ’74, the I-6 owners no longer were relegated to the 2-speed automatic, the 3-speed automatic became the standard option across the line.
Come 1975, the Omega, as well as all it’s corporate siblings, got a redesign. New engines this generation were the 260 Olds V8 for 1975-1976, the Chevy 305 for 1976-1979, as well as the Buick 231 V6 for 1977-1979. The last rear wheel drive Omegas were sold in the 1979 model year.
For 1980, the new front wheel drive X-bodies came off the assembly line. Engines were the 2.5 I-4, and the 2.8 V6. Available in this generation were the sporty versions known as the Omega SX and the SportOmega.
For complete history of the Omega, see the page at Rocket100 HERE.