I have the bottom end apart on my 78 sporty.The guy I got the bike from says he thinks the cams are Andrews 'A' grind. I cant find anything fitting that discription in any catalouges. The only marks on the cams are on the back of the gears -1p ,2p, 3p, 4p. Any way to tell what kind they are ?
THOSE CAMS ARE "p" CAMS STOCK H-D. THEY WERE A STANDARD CAM H-D PUT IN THE IRONHEADS. THE #'S DEIGNATE WERE THEY GO. NUMBERED 1-4 STARTING WITH THE REAR EXHAUST CAM =1 REAR INTAKE=2 FRONT INTAKE=3 FRONT EXHAUST=4. I HOPE THIS HELPS.
i noticed that you have a 78 xlch. that particular motor should have had "pb" cams in it. sounds to me like someone changed them. the "pb" style cam was a performance oriented stock h-d cam. the had longer duration and slightly higher lift. than the "p" style cams.
Thanks for the info SCAGNETTI! Seems the previous owner GOT TOOK. He thought he had perfofmance cams installed. He also thought the cylinder wre bored 10 over with new pistons but when I took it apart it still had stock pistons and the cylinder measure standerd bore .