Look into the Hi-Perf option from GM.
The GM Iron Block lsX B-15, which is warranted to 900 fwHP.
Scored cylinder, need to replace short block on 2012 CTS-V
I have a scored cylinder and need to replace the block on my 2012 CTS-V with 93k miles on it.
Do y'all think I should go with a factory refurbished OEM block from Cadillac (12k cost, ~6k for labor)? So as to have a two year warranty? Not sure if this option would be best for retail value, or if I should have a machine shop in the Bay Area drop a block with forged internals in it?
Does anyone know of a reputable shop in the Bay that could reliably do the work? My leads as of now would be Rob's Engine Repair in Hayward, or Matt at GPTuning.
Any advice would be greatly appreciated.
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Do y'all think I should go with a factory refurbished OEM block from Cadillac (12k cost, ~6k for labor)? So as to have a two year warranty? Not sure if this option would be best for retail value, or if I should have a machine shop in the Bay Area drop a block with forged internals in it?
Does anyone know of a reputable shop in the Bay that could reliably do the work? My leads as of now would be Rob's Engine Repair in Hayward, or Matt at GPTuning.
Any advice would be greatly appreciated.
1 - 20 of 27 Posts
Wrong..
The engine should be disassembled.
When cylinder walls are scuffed like this,
we don't worry about a compression test
as the engine has been damaged.
The scoring is most likely a damaged ring
and / or piston injured from self detonation.
This is particularly so, if it is one of the two rear cylinders,
as they run significantly hotter than do the rest.
It's not going to get better and most likely will get worse.
Now, as an owner of an lsX B-15 tell him everything he needs to know..lol
Take care Mr. Kitty..
Let's put a little more perspective on this. . .
The OP lost this engine to what appears to be Self-Detonation.
Just an educated guess. . .
The OP has just 5-Posts and does not have any mods in a signature.
He has asked for info regarding a new engine and desires a warranty.
He can get into the lsX B-15 for about the same amount
of money, as he would spend on the LSA.
The LSA comes with an aluminum block with thin 'crap' cast iron cylinder liners. These liners do not expand at the same rate as does the aluminum block. The aluminum block expands faster as heat is driven into the block. This then causes the liners to not be supported. They then crack!
The B-15 also carries a warranty. It is warranted for 900 fwHP.
And the B-15 comes with an Iron Block made with high quality and durable iron.
This block was engineered by the legendary NHRA Pro Stock
Engine builder, Warren Johnson. It was made for racing. . . .
This engine will smog!
The major differences regarding its ability to smog are; a bit more compression. Heads are similar to LS-3 Cylinder Heads, but come with 6-Bolts to clamp to block. A camshaft that is a bit longer in duration. This engine with minimal mods will make between ~635 to ~665 rwHP. . . . Assuming the correct fuel is used!
Considering the above, if it is within the OP's budget moving
to this engine, in itself, is a warranty against future failure.
-------------------------------------------------------------------
OP, it would help if you would put any mods in your signature line.
Cheers
The OP lost this engine to what appears to be Self-Detonation.
Just an educated guess. . .
The OP has just 5-Posts and does not have any mods in a signature.
He has asked for info regarding a new engine and desires a warranty.
He can get into the lsX B-15 for about the same amount
of money, as he would spend on the LSA.
The LSA comes with an aluminum block with thin 'crap' cast iron cylinder liners. These liners do not expand at the same rate as does the aluminum block. The aluminum block expands faster as heat is driven into the block. This then causes the liners to not be supported. They then crack!
The B-15 also carries a warranty. It is warranted for 900 fwHP.
And the B-15 comes with an Iron Block made with high quality and durable iron.
This block was engineered by the legendary NHRA Pro Stock
Engine builder, Warren Johnson. It was made for racing. . . .
This engine will smog!
The major differences regarding its ability to smog are; a bit more compression. Heads are similar to LS-3 Cylinder Heads, but come with 6-Bolts to clamp to block. A camshaft that is a bit longer in duration. This engine with minimal mods will make between ~635 to ~665 rwHP. . . . Assuming the correct fuel is used!
Considering the above, if it is within the OP's budget moving
to this engine, in itself, is a warranty against future failure.
-------------------------------------------------------------------
OP, it would help if you would put any mods in your signature line.
Cheers
Nothing to worry about..
As Einstein once stated; everything is relativistic. . .
In the 'Surly Ones' world, he would only have to have the machine work done outside, as he is highly capable of disassembling the engine, and putting it back together. Possibly you are also..
Cheers
Ooh thank you. I can't believe of all the shops I've talked to nobody ever brought this up smdh. Would that be the LSX376-15? So this one? LSX376-B15 Crate Engines | Chevy Performance Parts
I will definitely go this route, if it will pass smog. The site says intended for competition use only, and this is my only car.
The dealership, when replacing the supercharger, noticed a cylinder misfiring, pulled the engine out and scoped it. Said it's a wrap for it, matter of time. Also it can't pass SMOG
Thanks for the feedback y'all. The scored cylinder is cylinder 1, and the dealership did run a compression check. It had 30 lbs of compression.Wrong..
The engine should be disassembled.
When cylinder walls are scuffed like this,
we don't worry about a compression test
as the engine has been damaged.
The scoring is most likely a damaged ring
and / or piston injured from self detonation.
This is particularly so, if it is one of the two rear cylinders,
as they run significantly hotter than do the rest.
It's not going to get better and most likely will get worse.
Now, as an owner of an lsX B-15 tell him everything he needs to know..lol
Take care Mr. Kitty..
I looked into resleeving but everyone seems to suggest against it, as Duck says. I'm at peace with replacing the block, and pretty juiced about the LSX B-15 option
I don't believe rebuilding an engine due to cylinder scuffing is always necessary. Based on the images posted with limited information I was only suggesting to further evaluate. Even though I do have a B15 engine, I realize there are others that have good experience and recommendations to share.Wrong..
The engine should be disassembled.
When cylinder walls are scuffed like this,
we don't worry about a compression test
as the engine has been damaged.
The scoring is most likely a damaged ring
and / or piston injured from self detonation.
This is particularly so, if it is one of the two rear cylinders,
as they run significantly hotter than do the rest.
It's not going to get better and most likely will get worse.
Now, as an owner of an lsX B-15 tell him everything he needs to know..lol
Take care Mr. Kitty..
1 - 20 of 27 Posts
