ol' slant is dead... need help!

i was getting on the hwy one day not pushing my crate /6 i ordered when i heard a knocking i pulled over listened and was like yep rod drove it home had a 7 year 70000 mile warrenty so i wasnt worried got home called the guy he said it was a detonated piston i need to change my plugs i was like i know a rod know when i hear it he told me to drive it and it should stop well i did made it to work fine knocking of course then home then left again and poor old girl spit the #6 rod out and hit the started a big hole i was mad called him he was like was there oil in it hell yes just did a change 500 miles ago and it was full so when i pulled the motor took the pan off i found all 4 flex plate bolts broke off cam broke in 3 places and broke the rear of the block chewed the bearing to crap stripped the bolts holding on the rod cap and rod was in so many pieces and damaged the #5 rod also but i decided not to go back with a /6 but i will be getting it replaced to have a spare one around so just think it could be way worse lol