The 'E' Type Forum

I am retired (more or less) but have a lifetime of experience in oil seals especially in higher performance applications. With 30 years problem-solving experience in the oil seal industry I have lead seal developments which not only improve performance & reliability but also sort out the problems th...

GST # 11220 fits the rope seal groove & requires the crank to be ground down to Diameter 3.140" (79.75 mm).
It is the same seal used in USA to successfully solve the historic oil leakage problems in the Ford 460 engines.