nailhead buick intake?

Ive got a 3x2 nailhead intake I dont know what size engine it fits. How can I tell what it is?

 

give me the measurements across from front bolt to fron bolt..

 

Bolt hole measurement is a good guide. 8 1/4" is 264/322. I can't recall the measurement for the later nailheads...

 

I'm looking for a 264 intake....if that is what it fits and you are selling it let me know.....

 

9 inches across (left to right) is for a 401-425 nailhead.

 

In between 8"1/4 and 9" is a 364...

 

http://www.buicks.net/shop/reference/nailhead_casting_numbers.html

look down towards the bottom of the page.

 

Very good site for Buick V8 info.

www.v8buick.com

 

If it's for a 401-425, I'd sure be interested in it if you can't use it.
Dan