WHY !!!

[niterydr]

I vote the valve or an injector partial failure. If it was octane it would show up on more than one cylinder unless you have severly unequal flow across your intake ports.
If it was an injector full failure (aka not spraying) nothing would happen.

[way2fastalon]

i VOTE valve keeper dropping a valve into cylinder and destroying the engine fuck im pissed never seen huge power .... i feel sick ... ahhhhhh i guess thats what i get for NOT doing anything to the head before the rebuild

i NEVER revved it past 6500 i was driving and it just let go ..

[way2fastalon]

i dont know if i would be able to just put another piston in being i would have to re ring the whole engine + new rod and main berrings guessing those are going to be fucked too i dont get it ...