Postby john.davies » Wed Mar 28, 2018 7:03 pm
I have seen a picture of a VH 4 valve head with a centre hole in it with a big crack which apparently differentiates if from a VG head (not the crack, the hole). This may be a stupid question but what is the centre hole for? Cheers, John

1937 Panther M100 Rigid, 1946 Ariel Square 4 Rigid / Girder, 1952 Norton Model 7, 1953 BSA A10 Super Flash (WIP), 1958 BSA C15, 1961 Triumph T120R