Johnson 175 powerhead plug number indicates year?

[evilwind1]

I just got a power head from unknown year Johnson 175. I posted question before but didn't go through. Also if this is, say, a 1994 motor what other motors is the lower unit, t/t etc. compatible to. Thankyou!

 

[mikesea]

Re: Johnson 175 powerhead plug number indicates year?

Do you know if the powerhead is a looper or a crossflow.If your not sure,how many carbs,does it have,are they alum.or black plastic