Tarheel,
Thanks for the reply.
When you get a chance recheck the head casting #.
It should start with a 3. Sometimes after 50+ years, some of that oil dirt build-up makes a 3 look like an 8 an so on.
There is a 53 head casting # 3701887.
A quick check for that block casting # turned up nothing. If you would, take another look at the block casting # too.
