I will have to did up all the number of 68 Hemi A Bodies. There were batches of each. It was either three batches of number for one or the other and since I was looking at buying a Dart, all the SO numbesr ran in a row also with the serial numubers and I think about 10 numbers behind. Long time ago so I could be off. I believe these Hemi A Bodies were built in March April of 1968. I think without looking numbers up that they were around 280000 and up. I was also wondering if Chrysler ran a special build for RO and WO rans in 1967. I have not seen many Hemi Block for sale that came out of a 1967. I have a 1966 block that came with everything 1969 and that motor ended up in my Challenger so I could run it harder. Lots to learn hear and still learning after 40 years of this stuff.