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HELP! real Engine woes!

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Old Feb 18, 2022 | 05:27 AM
  #1  
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Default HELP! real Engine woes!

Hello all,

I joined specifically to post this message in order to get some help. There is a rather large back story to where I am now, which I will post if anyone is interested. Please note, I am not a mechanic, nor am I in American, or in the US of A. Yes, the plot is thickening already!

I have a 2015 Z51 Corvette and need an engine replaced/rebuilt (bottom of the engine was hit on the ground and the oil filter was dislodged, engine spun until the con rod arms damaged the crank - as far as I know!) I have found a replacement engine, but the engine is a Wet Sump vs the Z51 Dry Sump (I am correct here?)

My question is in 3 parts; can the Wet Sumped engine be Dry Sumped? Is there a kit for this? Is there any frame or mount work required, ie is it simple?

2nd; I have tried, unsuccessfully to get parts to rebuild the internal of my current engine. I have tried several places including Texas Speed, who are unable to get the Dry Crank or Oversized Pistons anytime soon - any suggestions of other places?

3rd; I do have a Z06 Engine in my possession Just the engine, no ancillaries ; how hard is a Z06 into a Z51 engine transplant? Worth pursuing at all?

Any help is appreciated!

Myles

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Old Feb 18, 2022 | 12:26 PM
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Nothing is impossible, but that has to be an extreme swap. Wouldn't you need all the computers as well to even consider it? There may be some here that can chime in... good luck with the project
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Old Feb 18, 2022 | 05:01 PM
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Also I believe that the C7 Z06 hood is taller than than the Stingray and Grand Sport hood just so it can accommodate the super charge lid cover on the LT4 and lets not forget the added intercooler system that would have to be installed for the supercharger !
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Old Feb 18, 2022 | 05:13 PM
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Originally Posted by Gixxerman
Nothing is impossible, but that has to be an extreme swap. Wouldn't you need all the computers as well to even consider it? There may be some here that can chime in... good luck with the project


You do not need any of the computers from a C7Z to use the LT4 in a LT1, just need to have the LT1 ECM/TCM to be tuned for the LT4. The ECM is the exact same one, the Operating System is the same as well so all of the tables are in the LT1 tune, just need to populate the tables and or change the ones for the mods the car will be running.
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Old Feb 18, 2022 | 05:23 PM
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Originally Posted by Mylo77
Hello all,

I joined specifically to post this message in order to get some help. There is a rather large back story to where I am now, which I will post if anyone is interested. Please note, I am not a mechanic, nor am I in American, or in the US of A. Yes, the plot is thickening already!

I have a 2015 Z51 Corvette and need an engine replaced/rebuilt (bottom of the engine was hit on the ground and the oil filter was dislodged, engine spun until the con rod arms damaged the crank - as far as I know!) I have found a replacement engine, but the engine is a Wet Sump vs the Z51 Dry Sump (I am correct here?)

My question is in 3 parts; can the Wet Sumped engine be Dry Sumped? Is there a kit for this? Is there any frame or mount work required, ie is it simple?

2nd; I have tried, unsuccessfully to get parts to rebuild the internal of my current engine. I have tried several places including Texas Speed, who are unable to get the Dry Crank or Oversized Pistons anytime soon - any suggestions of other places?

3rd; I do have a Z06 Engine in my possession Just the engine, no ancillaries ; how hard is a Z06 into a Z51 engine transplant? Worth pursuing at all?

Any help is appreciated!

Myles

The LT4 block is the same block as the LT1 assuming dry sump to dry sump or wet sump to wet sump. The pistons in the LT4 are a lower compression than the LT1 pistons. So you are going to either want to change the pistons at the least or the pistons/rods and new rings. this is a great time to upgrade to forged pistons/rods.

I thought there was a sump conversion kit out there, I wouldnt think to convert it would be too hard.

Good luck with the repairs OP.
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Old Feb 19, 2022 | 09:24 AM
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LT4 is dry sump and so is Z51 so the oil system is the same.
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Old Feb 19, 2022 | 12:10 PM
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Originally Posted by Zjoe6
LT4 is dry sump and so is Z51 so the oil system is the same.

Depends on the LT4, the one from a 6th gen Camaro is not a dry sump.
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Old Feb 19, 2022 | 06:28 PM
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Originally Posted by TJay74
Depends on the LT4, the one from a 6th gen Camaro is not a dry sump.
Hmmm I did not know that.
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Old Feb 19, 2022 | 06:37 PM
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Good luck. Sounds like a big project.
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Old Feb 20, 2022 | 07:57 AM
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Originally Posted by Zjoe6
Hmmm I did not know that.

Yep, only the Corvette LT4 came dry sump, the 6th gen Camaro ZL1/LT4 and the Cadillac CTS-V/LT4 are both wet sump designs.
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Old Mar 1, 2022 | 08:29 AM
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the saga continues.....I have had to shelve the LT4 engine and buy another LT1 block and rotating assembly. The LT4 I can sell later, fingers crossed!

Next question, where can I find a complete gasket set (excepting head gasket if possible) for the LT1 Z51? Is this a local dealer purchase?

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Old Mar 1, 2022 | 08:54 AM
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Originally Posted by Mylo77
the saga continues.....I have had to shelve the LT4 engine and buy another LT1 block and rotating assembly. The LT4 I can sell later, fingers crossed!

Next question, where can I find a complete gasket set (excepting head gasket if possible) for the LT1 Z51? Is this a local dealer purchase?
Start with the dealer to get the part numbers, then shop it out to see where the best price is. If they are the best price buy it from them.
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Old Mar 1, 2022 | 08:58 AM
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thanks Joe,

I ll start there!
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