Thursday, 24 September 2009

4G63 head gets O-Ringed.


We had just ported the head and fitted 272 degree cams, heavy duty valve springs and titanium retainers to this customers Mitsi Evo 4G63 cylinder head when he asked us to O-Ring the head. This is done to create a better seal between the gasket and the head. It increases clamping force on the gasket.