Well I tore into the "new to me" LQ4 that will be going to the machine shop in March (I hope) I need to wait due to $$$$
Anywho...The LQ4 was pulled from an '04 Silverado due to no oil pressure. Well I found the culprit spun cam bearing
Cross hatching still looks good in cylinders.
Pulled #2 and #7 rod caps...both looks GREAT.
Pulled #2 main cap....beautiful.
Pulled cam...wow, tough small prybar and bingo

 

well, is the cam bearing bore salvageable? or do you need another block?

 

thats sucks, i would almost always rather a spun main or rod just because of ease of replacement...hopefully it all checks out for ya

 

No way for me to tell... but I would THINK ????? they make a oversize/repair bearing.

BTW...it's an iron block if that makes any difference.

I'll call the shop and see what they say before I take it down there.

 

ya I have heard of oversize repair bearings, but never dealt with that myself, cost it out, another complete JY motor may be less expensive in the end.
Barrett

 

Gory details....yes it can be done but requires roller bearings and a 55mm ? custom cam... Looking at 1000-1300.....Looking for a good core again