2806178 Intake Manifold Replacement - What Date Code do I need?

[kiwigtx]

No time for me to back read. Have the heads ever been planed? (machined) If so, depending on how much they milled off, the intake surfaces will not match the intake surface angles.

That manifold may have been machined in the distant past to match a set of heads that were shaved - which means that any new heads will never match the manifold.

I know this from experience.

Also....be aware @Michael_ that there are different 440 intake gaskets (Turkey pans) - some with heat exchange holes, and some without.

(Disclaimer ....I didn't back-read that much either.)