i tryed to search, but it tells me its temporarily unavailable

i need to know the head codes for b series heads. im going to look at a head later and supposedly it is from a b16a/b18c. i would like to know what im looking at before i buy.

i want a b16 head for the better flow and the b18c5 has a b16 head. i assume this is the head he has, but the P number in the block should tell me exactly.

thanks guys

 

PR3