hoping somebody can pass on some wisdom and teach me somthing. Going through 7 sets of 7 bolt 45" cylinders with the "T" manifold (inlet pipe). I notice some sets have vertical fins cast into them under the intake valve, some don't, some were attacked with a hand grinder somewere in life. Were cylinders made without these fins? The set without looks like they were never in there. Other then the 1-29 and 1-32 numbers is there a code to the numbers on the cast plate(5-15,11-2,8-8)? I got inside measurements from 1.170 to 1.220 on the inlet nipples,most sets are withen .010 of each other. So were the fins ground off and the intakes opened up by guys looking for the edge, or are there more then one version cylinder from harley? Last what is the best way to restore oversize head stud holes?
Thank you......ya want to talk about the heads?