Hi, I'm new to USMB. Please forgive if I longwinded, I don't have all the lingo down yet. Here's the story.
I'm re-ringing an EA81 for low compression in the #4 cylinder, when I pulled off the heads I saw it has cracks between the intake and exhaust valves on one of the heads. I saw a post for the EA82 mentioning this isn't a big deal and you can have them staked. Is this true for the EA81 as well, or do I need to start looking for new heads?
Also, I have another EA81 that the heads and block have bolt holes (on the lower side 12 mm bolt heads) that are not on the other heads or block. Is this normal? Could I use these heads (w/ extra bolt holes) on the block without them, and vise versa?
Thanks in advance, John.