Both the 6.6 vin K Olds 403 and the 400 vin Z Pontiac were last used in 1979.
The 1979 400 engines were 1977 and 1978 casted leftovers. In '79, the 400 vin Z
was only used in the Pontiac F body car.

The 301 vin W engine starts in 1978 in many Pontiacs, 1979 in the Firebird and
ends in 1981 in all Pontiacs. The 301 vin Y 2 bbl engine was used from 1977 to
1979 in various Pontiacs.

The 4.9 vin T turbo was only used in various Firebird models from 1980 to 1981.
The vin S 265 4.3 V8 was used in various Pontiacs in 1980 and 1981.

That's basic Pontiac V8 engine wrapup from the late 70's and early 80's.

The last Pontiac V8 was made in 1981. To me, it's the last time Pontiac made a
car with original Pontiac identity :).

Joe--ASE Certified Parts Specialist & 10th Ann.Club Tech Director
'80 Carousel Red Turbo T/A, 27k orig.
'79 "Y89" 400/4 speed 10th Ann. T/A, 57k orig
'84 Olds 88 Royale Bgm 2 dr, 307 "Rocket" (lol), 143k and still going....

   Perdy much has been in SW Ohio. Only a couple of dry days this year.
Still too soft to go walking back where some idiot tore the lawn up. What
sort of stupid f.ck tries to make a U-turn in a snow covered back lawn? Let
alone when there is 15 inches of snow?

   Not to mention what sort of dumb f.ck can't even drive it on the packed
snow street once it is free?

   Hell the guy who did drive it out for him gets stuck just walking in the
snow.
Charles