Sorry I'm a little new to these forums, but further down I see that you have a B-body K-member with a 340. So all you need is a set of '66-72 B, 70-74 E, and 66-73 C-body 340/360 motor mounts.
Yep, 69 Coronet. Originally a 318 car. I suspect that k member is also original.
The thing that is throwing me off is that these mounts came off this engine and k member about a month ago. I'm guessing they they "made it work" on the conversion. I didn't know what to look for as I took it apart.
I was planning on reinstalling the engine and k member this weekend but I guess I should wait and get the correct mounts now that I know my mounts are wrong.
I will check the marketplace for some 340/360 mounts. If I can't find any I will give your business a call. I'm also in Seattle. Thanks for the info.