The Jalopy Journal
Discussion in 'The Hokey Ass Message Board' started by oldskool55, Mar 1, 2006.
how do i know if i have a buick 350 or a 455?
You just look at it...if it's huge, it's a 430 or 455. If it's not very big, then it's a 350.
you might try going to google.com, click "images", then type in
buick 350 engine
and then try it with 455. maybe that'll help?
350's and the 400-430 & 455 look very similar and it's easy to make a mistake.
One failsafe way, and it's easy is to look for three 1" high cast in numbers on top of the bellhousing area above the flywheel/flexplate.
These can be seen most times with the engine in the car.
Bring a flashlight.
I've seen these numbers on 430's and 455's, but am not sure if they are on the 400.
There's also a set of cast in numbers on the block sidewall behind the starter.
These are about a 1/2" high.
If I remember right, these numbers are upside down.
If you do the bore and stroke measuring bit, the stroke on the 430 and 455's is the same so you'll need a head removed so you can measure the bore.
Separate names with a comma.