the only thing that i know is, at first the engine used to have a slight knock because of dry startups, and it progressively got worse til this point throwing a rod through the block. I'm currently in the process of breaking it down and looking at what possibly could've gone wrong and i can kinda put some of the pieces together but not all of it. First, i see that one of the ls rods stretched and snapped whch took the piston skirt with it, and i could see that happening due to the high revs but it was only being revved to 7,500 which i thought was safe. Secondly, after taking my oil filter off and looking inside of it, i see that there is nearly ZERO oil in it; nothing but air inside... this is the part that concerns me the most, and i am wondering how i could prevent this from happening again on a future engine. The engine was FULL of oil, checked it constantly. I do know for a fact that the head was getting oil but it seems like my bottom end was definately not... I'm wondering WHY? could it just be the fact that i didnt replace the LS oil pump with a gsr one, or what?? And its odd, because the thing would still pop vtec and i assumed that that meant the thing had good oil pressure throughout.