Re: 1951 Sea King Powerhead Base Gasket Home › Forum › Ask A Member › 1951 Sea King Powerhead Base Gasket › Re: 1951 Sea King Powerhead Base Gasket frankrUS Member - 1 Year (includes $3 online payment fee)Replies: 6715Topics: 51 June 3, 2018 at 12:17 am #77310 No, I don’t think cork would hold up. you need something heat resistant