4mp head gasket? May 27, 2019 8:00:52 GMT -5 via mobile Quote Select PostDeselect PostLink to PostBack to Top Post by Jakmans on May 27, 2019 8:00:52 GMT -5 Anyone know what gasket I need to use on a sport turbo 4mp many thanks I think it's 48mm is it a copper ring that sits in there?