You can't really drive it now, so ... It's easier to take the head off than remove the engineand you can do that in a couple hours. If you don't see cylinder wall damage (I suspect you won't, since there are seem to be no busted off parts rattling around inside) you might get away with some head rework.

However, you don't want to put a new head on an old engine. That causes lots of blowby and makes you burn oil.

Maybe you can find an old head somewhere. Keep your pushrods if you got custom lifters.

The valvetrain is designed that the valves rotate in their guides while running. Only a slight bend will make it stick, and a very loose guide might let it work loose again.

Keep it cheap it. Buena suerte, amigo.


--
'74 145e T-5 'Orange Alert'