318 industrial manifold gaskets

[Gannon]

Does anyone know what manifold gaskets I can pickup from the parts store that will fit my 74 Tucker with a 318 Chrysler industrial? I picked up a set for the same vintage truck with a 318 but there is a difference in the ports.

Thanks!

 

[Blackfoot Tucker]

I haven't run into that issue, but I wonder if at some point in the snowcat's life if either the engine was replaced, or the cylinder heads were?

The 318 is part of the Chrysler LA engine family, and I believe the 340 and 360 heads have different intake ports. From what I understand, the "experts" on these engines are Hughes Engines in Illinois. I bought a cam from them and they were very knowledgeable and helpful. You might reach out to them:

https://www.hughesengines.com/Index/index.php

Good Luck!

 

[J5 Bombardier]

I've been using these on my 74 ind 318 , they fit the port size correctly on my heads. So for cast iron manifolds there good , but they are to small for a good seal for my Dec headers. I get them from NAPA , there not expensive. Pretty sure there are 2 port sizes on these heads , that need to be measured when gasket hunting .
J5 Bombardier

 

[Gannon]

I've been using these on my 74 ind 318 , they fit the port size correctly on my heads. So for cast iron manifolds there good , but they are to small for a good seal for my Dec headers. I get them from NAPA , there not expensive. Pretty sure there are 2 port sizes on these heads , that need to be measured when gasket hunting .
J5 Bombardier

This is what I needed, thank you! I came to find out the earlier cars used the small port heads.