Having finished my Burton cartridge upgrade, it is time to put the sump back on while the engine is in the car. I have the Spider chassis so there is room, but I just looked at the cork sump gaskets I got from Dave Bean and find both the front and the rear C shaped cork seals are .25" wide (6mm), while the rear C shaped groove in the engine is .36" wide (9mm).
The front sump gasket seems to fit perfectly. There is a large gap in the rear and I don’t think this will seal well, even with gobs of silicone. Does anyone know if R Dent or Dave Bean sell a wider rear sump gasket? If not, what is the best UK source?
I have a 1700 CC tall block which might explain something.