300c Possible Valve or Piston Problem - Chrysler 300C Forum: 300C & SRT8 Forums
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post #1 of 6 (permalink) Old 04-27-2010, 09:37 PM Thread Starter
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300c Possible Valve or Piston Problem

My brother has a 2005 300c 5.7l...he recently overheated the car due to a rotted hose. Shorlty after the car started making a loud sound and stopped running. We removed the spark plugs and tried to turn the crank and it goes only so far and then becomes locked. What does this sound like? Welcome all help, Thanks
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post #2 of 6 (permalink) Old 04-27-2010, 10:39 PM
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Originally Posted by horhey81 View Post
My brother has a 2005 300c 5.7l...he recently overheated the car due to a rotted hose. Shorlty after the car started making a loud sound and stopped running. We removed the spark plugs and tried to turn the crank and it goes only so far and then becomes locked. What does this sound like? Welcome all help, Thanks
Seized! that's what it sounds like.

Last edited by Lou; 04-27-2010 at 10:40 PM.
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post #3 of 6 (permalink) Old 04-27-2010, 11:19 PM
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I second the seized. Your motor is Toast.
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post #4 of 6 (permalink) Old 04-28-2010, 09:11 AM Thread Starter
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So you think there's no saving it or rebuilding it?
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post #5 of 6 (permalink) Old 04-28-2010, 08:59 PM
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Originally Posted by horhey81 View Post
So you think there's no saving it or rebuilding it?

Depends on how healthy the block and heads are. I have been beating my 5.7L to death but it won't quit. When it does, I will rebuild into the 6.4L

You can get the heads to a shop to examine for any kind of warping or cracking that might have occurred.

You can also stick with your 5.7L platform quite easily because over a million 5.7L have been built out there. You could search for used ones on e-bay, or look at suppliers like Street & Performance (479-394-5711) that sells long block 5.7L motors for around $2500.

Good luck.

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post #6 of 6 (permalink) Old 05-01-2010, 12:59 AM
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I'd go with a motor swap, Its the cheapest way to go, unless you plan on rebuilding or modding. If you lived near me, I would highly recommend a shop beside my work. The guy is amazing and builds the best quality rebuilds I've ever seen.
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