How to know the year of your Engine

[donniecabo]

I have a buick skylark 1966 and after running the block #'s I now know that my engine was built from 68-77 and its a 350 v8 , my question is on both sides of the exhast manifold upper area of the block you can see the numbers 74 so is this the year that the engine was built ? anyone know for sure? If I go to the pepboys and get oil filter what type of car do i have ? 74 gm motor ???

[bob k. mando]

74 gm motor ?


NO! they will probably try to hand you a filter for a Chevy 350. do not want.

you'll want a filter for a 1974 Buick 350, which is a very different thing from a Chevy.

you could also probably use a filter for a 1977-89 231 v6.




my question is on both sides of the exhast manifold upper area of the block you can see the numbers 74 so is this the year that the engine was built ?

probably. the best way to tell is with the two letter Engine Code. if it's truly a '74, your EC will be ZB, ZC, ZM or ZP.
http://www.teambuick.com/reference/y...ine_number.php

this will also tell you the factory rated power output in it's original installation.