No, from the factory Asters were all four cylinders.
In 1978 and 1979, the station wagon from the discontinued Astre series was added to the Sunbird line, as seen here in this 1979 Pontiac Sunbird Sport Safari Station Wagon example. They continued to use the same front fascia as the Astre with Sunbird badging. The 2.3 L engine was simultaneously discontinued.
Richard Astre was born on 1948-08-28.
Pontiac Tempest was created in 1960.
Pontiac Fiero was created in 1984.
Pontiac Vibe was created in 2002.
Pontiac Firebird was created in 1967.
Pontiac Grand Am was created in 1973.
Pontiac Sunbird was created in 1975.
Pontiac GTO was created in 1964.
Pontiac Bonneville was created in 1957.
Pontiac Mills was created in 1863.