Can anybody help out?
Up to putting the heads on my ST4 kit tonight and I get 2 sets of head gasgets in the kit WTF.
16787-99a and 16775-99b
they measure 3.950in and 3.850
which do I use?????????????????????
The 16775-99B is the gasket for a 1450, the other one the one with the bigger hole in the middle) is for a 1550. This was from www.harley-davidson-hangout.com/forum/hdrcgb-twin-cam-tc88-tc96-tc103-tc110/91350-head-gaskets.html Another person had the same issues with the head gaskets with 2 in the kit. They also recommended swapping them ut for cometic ones rather than the OEM gaskets.
So the bigger one suit the 103 ?
Is 103 and 1550 same bore size?
Yeah Thanks
Had a look at the gaskets that came off the 96 and they are the same size as the B's so the A's must be it.
Cheers.
