Early Olds heads, 303 and 324?

Can anybody fill in the blanks and/or confirm head number applications?

I know there are many "running changes" by GM and there are often crossovers near model year changes.

There seems to be consensus on #7, #8 and especially #10 heads and that #14 and above are from 371's.

The info below is mostly from searching this board.

no# '49, '50
#1 ?
#2 '52
#3 '53
#4 ?
#5 ?
#6 ?
#7 '54
#8 '55
#9 ?
#10 '56
#11 ?
#12 ?
#13 ?

Thanks.

 

I had an early 303, Maybe a 49' which had no number on the head but 303's are usually #2, 54' (324)#7, 55' (324)#8, 56' (324)#10, 57 & 58' (371) # 14 &16.

 

Thanks. You are confirming what I have read.

Somebody had #3 heads on Ebay. I am wondering if any other numbers got into production or were possibly used for other applications.