how to figure what head and tranny by stamp codes

[2.0civic]

what i dont understand is why someone would rev a b18a to 9k and not snap a rod....Sure it doesnt say b16a??

[f150harleytr]

i am not sure what the reason was in putting that old of a motor in, but i just said to hell with it, and i left well alone, and let someone else deal with that headache, or better yet nobody buy it, cause nobody with any knowledge would pay 7500 for that car, i might have gave him 4000 but he would have never took it

also this guy didnt even know what an idle was, he was liek whats an idle does it have somethign to do with the battery? lol