headgasket question
#2
Custm2500's Rude Friend
iTrader: (17)
If the engine was originally equipped with Fiber type gaskets you need to inspect the heads gasket surface for a notch. This typically applies to LS1's and 4.8/5.3 engines. See attached picture.
You shouldn't have a problem either way unless you have the notch on the deck surface. If you have the notch, your only option is to run the fiber style gaskets. The MLS will not seal correctly.
As far as I know this only affects the 806 and 853 heads on the 5.7L LS1 and the 862 heads on the 4.8/5.3L
If your engine was originally equipped with Fiber type gaskets make sure all the deck surfaces are clean and free of pitting. If not, you may also have issues with the MLS gaskets sealing. The MLS Gaskets are a much better gaskets for long term use.
If you look down at the heads it's real easy to see if you have MLS gaskets already you will see a rivet holding the layers together.
You shouldn't have a problem either way unless you have the notch on the deck surface. If you have the notch, your only option is to run the fiber style gaskets. The MLS will not seal correctly.
As far as I know this only affects the 806 and 853 heads on the 5.7L LS1 and the 862 heads on the 4.8/5.3L
If your engine was originally equipped with Fiber type gaskets make sure all the deck surfaces are clean and free of pitting. If not, you may also have issues with the MLS gaskets sealing. The MLS Gaskets are a much better gaskets for long term use.
If you look down at the heads it's real easy to see if you have MLS gaskets already you will see a rivet holding the layers together.
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#9
The vin# is etched into the deck surface on the driver side of block, look at the edge of the block directly behind the driver side cylinder head.
I ran a carfax report on what I thought was a worn out 200k mile 5.3 and it was actually a 2007 classic 5.3 with 11k miles.
I ran a carfax report on what I thought was a worn out 200k mile 5.3 and it was actually a 2007 classic 5.3 with 11k miles.
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