If you get that area to bare metal and still see no markings, look to the left of it in your picture and around the corner on the engine block for an oval pad with numbers...You might have a non ribbed head from what I can see in the pic ( I may be wrong, hard to tell from what you can see) which may indicate an earlier engine than what would belong in a 3A. �Also just for your info, check the timing cover for a rivet centered over the cam gear, which would indicate you have the earlier timing chain engine, instead of a gear drive one.
Nate you must have either superhero eyes or a huge screen on that �I phone. I can't see any numbers on my laptop.
