Car started missing and knocking, pining, or rattling. diagnosed as " done for " So my plan was to buy a new ( used ) motor. but 1st wanted to know why this motor died..

 

precats disentegrated sucked back into the motor scored cylinder walls car drank oil ran dry kaboom.

 

This can happen??

 

Yes, you're not the first. Too bad you didn't know sooner.

 

it's a 3.5 problem. our tiny dek engines were spared this fate

that's why you see so many people saying "gut your precats" or "get headers" for the 5.5 gen

 

5.7 swap or go home

 

We should have a meme by now!!! You sleeping brah!!!

 

2,4,6 ( front ) ring end gaps were rather large.. Id say in the spectrum of .200" to .220" range.. Compared to the factory spectrum as being .0091" to .0374" as per Chilton! 1,3,5 ( rear ) I never had one in the cylinder but there end gaps looked waaaaaay better pinched on the piston..But the number 5 lower ring or middle ring was broke

 

Engine Came out easy since i had to replace the radiator core support awhile back due to the typical front engine mount rust away..

 

see how thin the # two ring is in spots.. and the 246 cylinder walls were worn down .008" of an inch

 

split the case

 

 

Cylinders bored .020 over and crank just needed to be polished.. the heads just needed a good cleaning, so the head guy said.. he resurfaced it as well

 

Not sure i should have blasted the engine but i wanted to go big!

 

Primed




Painted

 

Lookin good!

 

want to see what they looked like slapped together

 

Thanks Beast