Quote:
Originally Posted by spitz
my 2021 camaro ss I bought it nov 13th the 14th turned it in for paint correction and ceramic coating 2 weeks later I get the car back and it looks great. Took it to a local car show and all the kids loved it (dad look at that black car) So now dec 7th my wife drives the car to work for the first time. At 4 am she calls me and says the motor fell apart. Now I have to get up and meet up with her. sure enough the motor sounds like all the insides fell apart. The tow truck driver had to try to start the motor to get it our of park. So I was able to hear it. It was towed to the nearest dealer, now waiting to hear from them. In the mean time a little research tells me that the 6.2 motor is having a problem with lifter springs. If thats the case I'm not sure I want just the springs replaced. What about small pieces of metal that may have gotten into the system? It has 321miles on it.
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Yes, the LT4 engine produced between certain dates(?) is or was experiencing valve spring breakage, which could cause damage to numerous other parts of the engine including the cylinder wall, piston, lifter, pushrod, rocker arm, one or both valves, etc.
I would want to be there when Chevrolet takes the engine apart. You should certainly leak test all cylinders.
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq