just bought a cylinder head that sbd has worked on.
there was a post a while ago about some lumps in the camber between the exhaust valves did any one know what they are for?
mine have been removed also both inlet, exhaust ports and the chamber have been polished thought it was a bad idea to do both to a very smooth finish?
all the egr ports on the head have been welded up and the exhaust ports reprofiled.
will get some pic up soon.
what are the sizes of the inlet and exhaust valve heads?