Standard vn 304 blocks vary from .025" to .035" deck height. Standard head cc is 63cc
MR.HG Donating Member Joined Dec 12, 2010 Messages 177 Reaction score 12 Points 18 Location Brisbane Members Ride HG Brougham, VS Ute, VR SS Jan 13, 2019 #51 Standard vn 304 blocks vary from .025" to .035" deck height. Standard head cc is 63cc
