Engine Help Cam Bearing Spun
Thread Starter
1st Gear
Joined: Apr 2019
Posts: 1
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Engine Help Cam Bearing Spun
Dealership told me today that I had a "lower rod out" and a "cam bearing spinning". But they won't look into it further to be sure because of the performance parts on it. They said the only thing they can do is replace the engine. My question is, what are the chances this actually ruined my block and/or heads? Could I not just get a bottom end stroker kit and have the engine rebuilt? And put a new cam in? Local machine shop wants over 2 grand to disassemble the engine and measure and test the block and heads to be sure they can reused. Just trying to decide what my best options are. BTW, I drove less than a mile straight to the dealership when I heard the low end knock so I'm hoping the block and heads are not destroyed.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
How'd they make that diagnosis without going into the engine? Sounds like a wild *** guess or they're just incredibly smart. The chances of your long block being ruined beyond repair aren't real great. I can't imagine a scenario where your heads would be that torn up. You should be good there. It may be as simple as a lifter gone bad. I'd get it away from the dealership and take it to a shop that knows Chevy LS engines.
The heads have to come off if the trouble is cam related. You'll have to change the lifters. If the oil filter is full of metal, you'd best pull the engine down to clean, replace, and repair. On the bright side, here's your "opportunity" to upgrade to a stronger engine.
The heads have to come off if the trouble is cam related. You'll have to change the lifters. If the oil filter is full of metal, you'd best pull the engine down to clean, replace, and repair. On the bright side, here's your "opportunity" to upgrade to a stronger engine.
