If that's the part # you're using, it's a one time programmable one. So no changing. It's not electrically erasable, nor via UV lamp.

Get a blank one.

EDIT: You might need to just erase it with the UV lamp depending on what variant it is. Ones with the window are UV erasable.

The reason is you can reprogram it with the exact same code is that you're not changing anything. You would run into an issue with anything that would remove more bits though, when the eprom is blanked, all the bytes are $FF, and you remove bits via the burning process to get for instance $8F. If the game needs $8F there and you subsequently burn say $80, it should do it.

Back in the day (70s-early 80s) there were people that would progressively burn code onto eproms and have a vector table at the end that grew with each burn to point the code to the "correct" newest block. Eproms that held 2k were $70 each then. Ouch.

ST M27C4001 and TI TMS27C040 are common EPROMs used in WPC games.

I don't deal with WPC games but Winbonds W27E040 is the only electrically erasable ROM of that size/pinout.

The datasheet doesn't state what happens in a read operation if pin 1 (Vpp) is low. Some EPROMs treat a low on Vpp as disabling the device, others simply ignore it during read operations which is what the ST M27C4001 and TI TMS27C040 chips do.
The WPC schematic says EPROM pin 1 is tied to the ASIC as another ROM page pin to allow it to support 27C080 EPROMs. Was it ever done?

Yes, some of the newer WPC games or new ROM versions use a 27C080.

I recommend using the 27C040 or 27C4001 for 4M games. Either buy new empty EPROMs or get a UV eraser for your used chips.