Okay, new problem, the engine is overheating

[wsteele]

No it just started happening I replaced all those parts because the engine was squeaking but ended up being the cam needed replaced from that stupid afm so I did the full delete everything g has been fine for the last 8 months

OK, so although not 100%, the odds definitely favor a problem being introduced in the change over to new parts. Could be defective components, mis-install, etc.

How does the oil look, any water in it? Any oil in the water? etc.

 

[Rummel6]

No water in oil

 

[avalonandl]

Look up Burping the LS engine cooling system on line

Also is the water pump new?

They fail alot on the LS....

 

[Rummel6]

Yes water pump was new it’s duralast from autozone

 

[wsteele]

No water in oil

Things I would look at are perhaps a defective pump, hoses (a flap can be created by defect, or how it was installed where the inner layer flaps down and blocks flow, more prevalent on aeroquip style hose than normal water hoses, but you never know). etc.

 

[OR VietVet]

You said you topped off a couple of times. Adding coolant means you did not add enough the first time or had an air pocket or you are leaking still or maybe have internal problems like head gaskets.

 

[97audia4]

I have done a radiator on the side of the road and a water pump at the race track so I have bled the system enough to do it well.

I also fill it, run it low Rpm with no cap on the surge tank, slight revs from a friend and be ready to fill it again when the thermostat opens up, you do not want to to get below the bottom hose or you will have air.

Repeat so there are no bubbles coming out when you rev to 3k RPM. Fill to the hot line put the cap on and let it cool down. Come back and top it off if its dropped at all.

 

[Rummel6]

So took the cap off and rev it today got some bubbles out but when I mash the gas the rad fluid in the expansion tank drops down then come back up even if I put the cap back on not sure why

 

[Rummel6]

So took the cap off and rev it today got some bubbles out but when I mash the gas the rad fluid in the expansion tank drops down then come back up even if I put the cap back on not sure why

 

[Geotrash]

So took the cap off and rev it today got some bubbles out but when I mash the gas the rad fluid in the expansion tank drops down then come back up even if I put the cap back on not sure why

Based on this, I think it's worth doing a leak down test on this engine. Before this post I was thinking thermostat, but after reading this I'm thinking a leaking cylinder head gasket - this is classic behavior when there's a breach between a combustion chamber and the cooling jacket. The only other thing I can think of is perhaps the cap on the expansion tank not holding as much pressure as it should, and preventing the cooling system from being able to handle as much heat without boiling the coolant somewhere in the system.