Is there any way to know if my motor has been rebuilt?
01-19-2010, 09:47 PM
#1
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Is there any way to know if my motor has been rebuilt? previos owner says it might have been but hes not sure. I have 175000 miles so i want to know if i should be worried about the little old timer going any time soon.
01-20-2010, 12:39 PM
#4
No need to pull the valve cover. Look at the head bolts next to the spark plugs.
To answer your question though - typically valve cover gaskets on LS1s are fine to reuse. It is possible one might tear when you pull the cover, but you should be fine reusing it.
A better solution to your original question is to have someone perform a leakdown test on your engine to get a reading of your rings and valves. Who cares if it has been rebuilt as long as your cylinder leakdown is say >20% and your cranking compression doesn't vary from cylinder to cylinder.
To answer your question though - typically valve cover gaskets on LS1s are fine to reuse. It is possible one might tear when you pull the cover, but you should be fine reusing it.
A better solution to your original question is to have someone perform a leakdown test on your engine to get a reading of your rings and valves. Who cares if it has been rebuilt as long as your cylinder leakdown is say >20% and your cranking compression doesn't vary from cylinder to cylinder.
01-20-2010, 05:12 PM
#6
the easiest way to know if it was rebuilt is to look on the freeze plugs on the driver side. i know in California it is required to put a dime sized metal stamp on one of them. it makes the warranty valid. if the engine overheats it melts it so this is how they tell for warranty
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01-20-2010, 08:38 PM
#8
I put AFR 205s and a 224°/230° Comp cam in my LS1 at 153k miles. It now has 186k miles and still running fine. If your Camaro is running well, go ahead and start modifying it. Plus a 100 hp nitrous hit will be fine as long as you have adequate fuel supply and don't detonate it.
The metal stamp on a freeze plug should not be a method to determine if it was rebuilt in the other 49 states. That's about the craziest thing I have ever heard...
The metal stamp on a freeze plug should not be a method to determine if it was rebuilt in the other 49 states. That's about the craziest thing I have ever heard...
