saw that engine on ebay - its a weird one as it has a YLB designation which I have never come across and seems to be a hybrid of some kind as its mainly 2wd but has an unusual block which has the old pinto fuel pump drive ( down by the pas pump mount) blank like the late 4x4 motorsport blocks.

I think you have yourself a very rare version of the cosworth engine there, possibly meant for a car that was never built. Its not a panther solo one as they did not have Ford on the cam cover