Head Differences obd1 vs obd2

[rscott]

Hey everyone,
Head is toast and i’m searching for a replacement. Are there any differences between the obd1 and obd2 heads?

My 80 is a 97 obd2. Question is can I use an older head on my bottom end or would i have to find an obd2 head.

Does anyone have a diagram to identify the differences?

 

[Fj80oregon]

Us spec 93-97 heads are all the same. The valve covers have some different baffling but has to effect on fitting.