1968 340 Complete

if i am reading the casting numbers right and from what i see it reads 3671587. these are 1973 340 heads with a chamber volume of 65.0-73.0 cc's .they also used these heads on 360's in the years 73-74 and again in 76 according to my bible anyway. mopars rule. hope this helps and i hope i am right for a change.