The seller of the Harper on ebay(see Mark's link above) says that the intake ports are "just a hair over 1 1/2 inches." Is that 216 or 235 size? I will measure my 850 head (off of a 261) when I get home tonight. Does anyone have the port diameters, inside the alignment rings, for the 235 and 216 heads? Were the early (pre 1950) 235s the same size as the later 235s?
