273 intake runner size ? gaskets .

[stroker402]

anyone know what size the openings are on the intake manifold runners port side / head ports , on a 65 commando engine? stock small port heads...... need to know size for intake gaskets . felpro PN?
Thanks !

 

["Dart67"]

I have a set of 1965 273 heads and 4bbl Intake on the shelf out in the shop.

I just went out and measured the ports.

The port size on the Intake Manifold is 7/8" X 1 7/8".

The port size on the heads is 7/8" X 2".


The Fel-Pro Intake Manifold Set for 1965 is MS 9935 $11.62 @ Rockauto.com
The Fel-Pro Intake Manifold Set for 1966 - 1989 is MS 90009 $9.13 @ Rockauto.com

I beleive either set will work.


Herb

 

[toolmanmike]

Ouch, I don't have any heads off to measure for you. The only gaskets I know are for the 318. The application will include 273 and the ports will be big. Not much you can do about that. Summit has quite a few different gaskets available. Don't use the port size chart on the left. There are only a few gaskets that have sizes listed. With a 273 you need to buy the smallest they have available. tmm

 

[stroker402]

Thanks You Guys !! .. that was a great help. I appreciate it !
Intake gaskets are ordered up. Rockauto .
Thanks again !

John

 

[4spdragtop]

Anyone got the port size on the MS90009? I've googled without any sizing listed.