63 Dart identification

I'm having a little trouble reading the block casting number. Can you verify it's 2806030? If so, it's the later '67-9 version. You would need to get the date code to refine it further. '67 came stock in two configurations, one is a 2bbl standard performance 180HP, and the other is the Commando/Charger version 4bbl 235HP. Both versions that year used 920 casting close chambered cylinder heads, a solid cam, and adjustable rockers. If it's the '68-9 version, they were all 2bbl and hydraulic cams, with the 675 casting open chamber heads. See if you can see the stamping on the driver's side front of the block just below the head gasket seam. If it's a '67, it will be stamped C273. IIRC, the '68-9 273's have PM in front of the 273 those years. If it matters to you which year it is (they're virtually identical) You would need to get the date code usually stamped in the same area as the C273, or get the date casting off the passenger side of the block up close to the top.