Can someone tell me the OD of the face of the E35 that the rocker bears on. Post war they are ET35 Valve stem collars and are 3/4 in but the prewar ones are different. I am building a new set of heads for my A twin and doing the valves post war style but need these to be a bigger OD to suit the pre war rockers. I don't want to take a cylinder head apart to measure one at the moment!
Thanks
Robert
Thanks
Robert