1928 Jc

[LPK95]

JUST WONDERING IF ANYONE CAN LET ME KNOW WHAT THE "C" DESIGNATES IN THE MOTOR #?

IT IS A 61 CU IN {J} BUT CANNOT FIND THE "C" IN ANY REFERANCE GUIDE I HAVE LOOKED AT.

THANKS FOR ANY HELP.

[partshunt]

Hi, J is 61 cid, C is comercial. Be like with a side car delvery van or flat deck . Many were used in P & D service. Some extra wide track jobs. JDC is 74 comercial. A local old Harley dealer told me the cam was diffent. Compression was also decreased using spacer plates under the barrels for all side hacks....