I have been watching for a low mile roller 302, and finally saw one in a 73 mustang that looked like a rebuild. It was easy to identify as the intake was gone. Also, there wasnt 5 hours of junk to remove from it, and it was front sump. The timing cover was not set up for a mechanical fuel pump though. So, it turned over nicely, and after pulling the heads, I could still see crosshatches in the cylinders and there was no ridge whatsoever. It was also a E7TE block, as I have read that pre 85 blocks may be thinner? One of the pistons had a valve dent? I pitched the heads, as they were D8 heads with giant chambers and giant obstructions in the exhaust ports. The headbolts were not very tight, I would say about 40 ft pounds. I think whoever assembled this thing was very un-methodical. I want to get it into my workspace after I get a engine stand and hoist and get a real close look at it. At this point I am hoping to use it without any machining, but I want to see what the timing chain looks like, see if the oil pump is factory or replacement, and try to ID the cam. The pistons appear to come about .008 to .010 out of the hole, I need to get an exact measurement. Besides the dent, what can anyone tell me about these pistons? I dont see .030 stamped on them....I thought over bore pistons were marked in some way. Is this considered a flat top piston? The circular relief is fairly shallow. Also, is there anything else I should pay close attention to? I usually dont get inside these things, so I am a little bit into new territory.