07-25-2005, 02:06 PM

screamingchief screamingchief is offline

Ultimate Warrior

Join Date: Nov 2004

Location: S.E. Wisconsin

Posts: 12,788

The 9778 prefix of the number for your "mystery" head indicates it is a '65 head.

And there is a 326-285HP head casting number 22,so it would be my best guess that your "mystery" head is indeed the 326-285HP head.

The extra 8 is probably just to identify it as an 8 cyl. engine,not sure 'bout that though.

Also could be a code to indicate any number of other things.

9778/8/22...

The '65 326-285HP engine is the tempest/lemans 4 bbl. carter carb 10.5 CR.

That would be my best guess as to this.

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