The head will bolt on, but it leaves a large hole that the head doesn't cover up in the block that is open to the crankcase. It can be welded but its a big pain.
You can put the crank in a 7-bolt 4G63 to make a stroker kit, or you can put your DOHC head on that block. There are write ups all over the place on how to do it. There are actually 3 holes that need to be plugged, and you don't need to weld them - you can use freeze plugs to block them off. They are just oil drain holes that the DOHC head doesn't have.
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