Silicone Thermostat Water Neck Housing Gasket attempt

against my better judgment I ordered some Chinese parts.
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Fo Chevy Aluminum/Silicone Thermostat Water Neck Housing Gasket SBC BBC 350 454 | eBay


Its for a chevy but I've read some reviews where people have drilled them out for mopars with success.

Taking out a 180 stat to put in a 195. Hope it works!