Nailhead intake identification

[nailT]

Guys

I found an intake manifold on the net that i'm interested in. The problem is that the guy selling it does not know for sure if it's for a 401/425 or if it's for something older. How do I determine (via pictures only) what it is?

 

[Airy Cat]

1963 through 1966 401 and 425 intakes will interchange.

 

[nailT]

1963 through 1966 401 and 425 intakes will interchange.

But my question is from only a picture, how can I be for sure that it's for a 401/425 and not a 322 or a 364?.

 

[telriv]

Measure the center-center of the front intake manifold bolt holes & post.

Tom

 

[Lobucrod]

Center to center on the intake bolt holes on a 401/425 are 9-1/8". I just measured my 401 and came up with this. Smaller engines are like 8 or 8-1/2". Cant say for sure cause I dont have a smaller nail head lying around right now.

 

[rcull]

If it should happen to still be original color and red, it would definitly be a 401/425 manifold.

Nailhead intake manifold measurements are at the bottom of this page...

http://www.teambuick.com/forums/view.php?pg=casting_numbers_nailhead