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Looking for LS1 help. Multiple misfire did compression test 3 times added a tablespoon of oil in the chamber the last time and got way better numbers that means piston rings? Lean codes also and low oil pressure light thinking a head gasket on the driver side? Turned it 5-8 times to achive 180. 4 turnes was around 130-150. The pasanger head just did better. Thinking of buying an air compressor and doing a leakdown test? Looking for guidance got maybe 3000 to drop till the end of carona virus. Trying to spend money where it counts. Thanks for your consideration
 

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Looking for LS1 help. Multiple misfire did compression test 3 times added a tablespoon of oil in the chamber the last time and got way better numbers that means piston rings? Lean codes also and low oil pressure light thinking a head gasket on the driver side? Turned it 5-8 times to achive 180. 4 turnes was around 130-150. The pasanger head just did better. Thinking of buying an air compressor and doing a leakdown test? Looking for guidance got maybe 3000 to drop till the end of carona virus. Trying to spend money where it counts. Thanks for your consideration
Cranking pressure is marginal. Not enough info on codes, so many variables, I'd not take a guess without more detail. Head gasket has no effect on oil pressure.
 

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Yeah do the leak down to see where you might be losing compression from.
If head gasket is suspect then check cold start and take off the radiator cap if you have one. If blown head gasket then you’ll see exhaust gases bubbling out. If not there’s a coolant tester you can use too but I’ve never tried it.
 
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