Yeah I had a feeling something wasn't right about it... also I guess I was a little tired last night I didn't even realize that the center manifold wasn't split... silly gmc's.
Found this website last night:
http://www.caaarguide.com/sub1/id435.html
For 65 looks like the tilt series could be outfitted with a: 230 I6, 292 I6, 283 v8, 327 v8, 348 v8, and the 409 v8.
Maybe it has some potential of being the 327. Next time I'm up at the garage I will pull the tag.
