If running 4.8 heads I hope he changes the intake valves.

 

No the tune was never touched but this isnt something that just happened it was a time bomb! The heads have a little damage but they are going to get milled and the one fixed. Im going ahead and replacing the lifters and the rest is staying the same. Yeah I just had to borrow the money not a biggie! I will be up and running proabbly tomorrow so Im kind of excited! I went and saw the damage and it was pretty nasty. Im going back out there now to get some pics and Ill post in a few!

 

WE DIDN'T TOUCH THE TUNE, IT WAS WAY OFF THOUGH! LTFT's were at +17%, the shift tables were off, they had it shifting @ 30 mph @ wot in first, which it would go to 45 mph, whenever he would shift from 1-2 the rev limiter would cut in & once it shifted all was fine. from looking at the edit file they had they electronic throttle control cutting out @ 5800 rpms WTF? everthing else including all rev limiters were set @ 6700.

I feel bad for mike in a way, he has been with me during a few engine & trans failures. But his new set-up will be sweet

 

OK here are a few pics of the damaged head and just some stupid random pic of the LS1 in a crate! Ill get some pics of the piston and block tomorrow. I should be up and running tuned and all by tomorrow!

http://community.webshots.com/album/245093831SzLTxM

 

Link doesn't work!

 

So what was the actual cause of this? Was it the nitrous or a bad tune, did it all happen at once or overtime? Im just concerned because I have also been hearing a slight ticking noise comming from engine but it sounds more audable from under the truck and when Im driving on a road with a curb where it echos underneath hope its an exhaust leak anyways congrats on the new motor and a 21 gun salute to the old 4.8

 

Damb it seems that us 4.8 guy are fallin like flys. This sucks. Good luck with the new set up

 

fingers crossed...
Guess this is one reason why I dont mess with the laughing gas..
everyone I know or have heard of running the gas, blows there motor or breaks something not to long down the road.
but even N/A or F/I have it's faults to.

 

true true, never a big fan of n20 here. even if that was not the cause. good luck with the new motor! DONT SPRAY IT

 

maybe subconsciously we push them to there limits hoping they will break apart so we have an excuse to get a bigger motor