B-Series Head Codes

[jtornado]

Im basically looking for B18b head codes and what obd is it????
ex. b18b obd-0 head code=pr4-0(im just guessing)
ex. b18b obd-1 head code=pr4-2(im just guessing)
ex. b18b obd-2 head code=pr4-4(im just guessing)

 

[eg6sir]

well to figure the obd you'll need to look at the casting on the left side of the head above the exhaust ports.. for example.. 9/2 0/5 0/2 .. the first 2 numbers are what year the head was made..