I have a B16a head and stamped on it is 93 PR3-2 Does that mean its a JDM B16 head cause i dont remember anything having a B16 in it in 93 in usdm.And i was curious to what this head came off of

 

OK found this info

pr3-1
pr3-2
pr3-3
pr3-4

none of those are specific to an ITR head only. it could be a b16a head, could be a b17a head, could be a b16b head, could be a b18c5 or jdm b18c-r head.

pr3-[1-4] came on:

88-91 EF9 & EF8 Civic & CRX SiR
92-95 EG6/EG9 Civic SiR
92-96 EG2 USDM Del Sol VTEC (or JDM Del Sol CRX SiR)
92-93 DB2 USDM Integra GSR
96-00 EK4 & EK9 Civic SiR & Type R
96-00 DC2 & DB8 JDM Integra Type R
97-01 DC2 USDM Integra Type R
99-00 USDM Civic Si / Canadian Civic SiR

 

JDM B16A (Second Generation)
Found in:
1991-1994 JDM Honda Civic Sir/SiRII (EG6)
1991-1993 JDM Honda Civic Ferio SiR (EG9)
1992-1995 JDM Honda CRX Delsol SiR (EG2)
1995-1998 JDM Honda Civic Sir/SiRII (EK4)
1995-1998 JDM Honda Civic Ferio Si (EK4)