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Hello I have been a long time browser but I have an a few questions regarding a 6.0 swap I知 doing.
Backstory is I have an 06 avalanche with the 5.3 that spun a bearing last week. I found a local lq9 (I believe) out of an 06 1500 and from what I have read, should go in without any problems. I found out last night that the new engine is a 58x gen IV and I知 assuming the 5.3 is still a gen III. I know about the converter that I can get for it and I値l probably have to get an extension harness for the knock sensors (5.3 in the valley cover and 6.0 on the block). But looking at the valley covers I am not sure what the sensor is sticking out of the top of the 6.0. Anyone know what it is? Picture for reference.
That could be a LY6 from a heavy duty truck made after 2007.5. There is no DoD but it may have VVT depending on what the timing cover looks like. LQ9's run cathedral port heads and that is a square port design.
And it can't be a L76 from a vortec max truck because those had DoD/AFM and the valley plate does not match.
The block should have a part number or something stamped on it. The cylinder head casting numbers should also give it away.
Can you post a pic of the timing cover? That’s 100% not an LQ9. Like mention above since it has rectangle port heads, I’m guessing the casting number on the heads is 823 and the engine is most likely an LY6 or an L96. Also, the cam sensor on the Gen 4 motors is located on the front of the engine on the timing cover vs the rear for your current Gen 3 5.3 so you will need to extend that connection as well. If your timing cover looks like the one on the left then you will need to delete the VVT. If it looks like the timing cover on the right then it doesn’t have VVT.
Last edited by 01FormulaTA; 02-18-2019 at 03:07 PM.
Yeah I called Nelson performance regarding a tune and learned that the hard way. I was lucky to find the proper intake manifold locally that is complete with fuel rails and throttle body. And the timing cover looks like the one on the left. This project is getting much more expensive as the day goes
So I ordered the Lingenfelter kit for the 58x reluctor and knock sensor wire extension. So now I値l need a vvt delete and cam sensor wire extension. Anything else that I知 missing? I did notice there are differences with the manifolds as far as the sensors and vacuum lines go and I値l dig deeper into that tomorrow.
My 5.3 is a flex fuel engine and I have read the injectors are bigger. Would it be possible or worth it to swap the fuel rail over to the ly6 manifold that I got?
So I ordered the Lingenfelter kit for the 58x reluctor and knock sensor wire extension. So now I値l need a vvt delete and cam sensor wire extension. Anything else that I知 missing? I did notice there are differences with the manifolds as far as the sensors and vacuum lines go and I値l dig deeper into that tomorrow.
My 5.3 is a flex fuel engine and I have read the injectors are bigger. Would it be possible or worth it to swap the fuel rail over to the ly6 manifold that I got?
Im not sure if the Gen 3 Truck engines use EV1 or EV6 connections but if it uses the older EV1 connections then you will need adapters to use the new EV6 connections on the newer injectors...More than likely the 6.0 injectors are the same size or bigger than the 5.3 Flex Fuel injectors...post the part number of the injectors you got with your manifold, it will be located vertically along the back of the injectors...
I値l check them out after work but I believe they do have the new connectors. I noticed the new intake manifold drive by wire connector is a 6 pin one and my original is 8 pin. I have seen conversion wires for ~$40 and one from another company that is like $270. The way this project is going, I知 assuming I値l need the more expensive one
02-18-2019, 09:58 AM
New member and need some help.
