LS3 motor in 997.1?
03-21-2024, 09:35 AM
#31
I have a 2005 Carrera S and the crank shaft bearing went at 62K miles. Porsche won't do anything about this, of course, even though there's a known defect with this engine.
It will cost over $30K to get a new motor installed.
Looking at alternate options here - has anyone put a different engine in a 997? Renegade Hybrids sells a kit to help with the swap and everything can probably be done for around $20K.
Does anyone have any personal experience with something like this?
Thx.
It will cost over $30K to get a new motor installed.
Looking at alternate options here - has anyone put a different engine in a 997? Renegade Hybrids sells a kit to help with the swap and everything can probably be done for around $20K.
Does anyone have any personal experience with something like this?
Thx.
03-21-2024, 11:03 AM
#32
Rennlist Member
03-21-2024, 04:23 PM
#33
I have a 2005 Carrera S and the crank shaft bearing went at 62K miles. Porsche won't do anything about this, of course, even though there's a known defect with this engine.
It will cost over $30K to get a new motor installed.
Looking at alternate options here - has anyone put a different engine in a 997? Renegade Hybrids sells a kit to help with the swap and everything can probably be done for around $20K.
Does anyone have any personal experience with something like this?
Thx.
It will cost over $30K to get a new motor installed.
Looking at alternate options here - has anyone put a different engine in a 997? Renegade Hybrids sells a kit to help with the swap and everything can probably be done for around $20K.
Does anyone have any personal experience with something like this?
Thx.
03-21-2024, 08:19 PM
#34
Rennlist Member
The LS swap is sort of a Frankenstein.
At $20,000, maybe the LS saves an upfront $5000-$7000 compared to a 997 rebuild however the LS swap devalues the 997 by about $8-$10,000 when selling compared to the purist preferred 997 rebuild. Also more 997 buyers prefer the 997 engine so more limited market when selling.
Save on the front end, lose a bit more on the back end.
At $20,000, maybe the LS saves an upfront $5000-$7000 compared to a 997 rebuild however the LS swap devalues the 997 by about $8-$10,000 when selling compared to the purist preferred 997 rebuild. Also more 997 buyers prefer the 997 engine so more limited market when selling.
Save on the front end, lose a bit more on the back end.
Last edited by groovzilla; 03-21-2024 at 08:21 PM.
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alaris (03-25-2024)
03-21-2024, 09:09 PM
#35
The LS swap is sort of a Frankenstein.
At $20,000, maybe the LS saves an upfront $5000-$7000 compared to a 997 rebuild however the LS swap devalues the 997 by about $8-$10,000 when selling compared to the purist preferred 997 rebuild. Also more 997 buyers prefer the 997 engine so more limited market when selling.
Save on the front end, lose a bit more on the back end.
At $20,000, maybe the LS saves an upfront $5000-$7000 compared to a 997 rebuild however the LS swap devalues the 997 by about $8-$10,000 when selling compared to the purist preferred 997 rebuild. Also more 997 buyers prefer the 997 engine so more limited market when selling.
Save on the front end, lose a bit more on the back end.
We plan on just driving it! And will have it for a very long time.....
03-22-2024, 01:25 AM
#36
Rennlist Member
If you have a high mileage 997, it's probably worth sub 40k anyways. So the engine rebuild can in many cases, exceed the value of the car!
03-22-2024, 03:29 AM
#37
I have a 2005 Carrera S and the crank shaft bearing went at 62K miles. Porsche won't do anything about this, of course, even though there's a known defect with this engine.
It will cost over $30K to get a new motor installed.
Looking at alternate options here - has anyone put a different engine in a 997? Renegade Hybrids sells a kit to help with the swap and everything can probably be done for around $20K.
Does anyone have any personal experience with something like this?
Thx.
It will cost over $30K to get a new motor installed.
Looking at alternate options here - has anyone put a different engine in a 997? Renegade Hybrids sells a kit to help with the swap and everything can probably be done for around $20K.
Does anyone have any personal experience with something like this?
Thx.
I bought a used engine and had it modified by Hartech straight away. In the end it was just as expensive as a new engine but without the problems. For higher mileages, I would always choose this route prophylactically and not wait until the damage occurs. But you're always smarter in the end.
But I never thought about selling the car.
Last edited by 8x57IRS; 03-22-2024 at 03:35 AM.
03-22-2024, 08:36 AM
#38
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Sloss (Nick) is the rennlist guy that did the K24 swap. Looks like he covered the process extensively here
https://rennlist.com/forums/rennlist...y-porsche.html
anyway, i'm sure armordude has moved on but for the rest of us something to think about. I actually just messaged Nick minutes ago and he responded quick. call this an inside scoop, but he's pretty close to putting a kit together to sell! I'm a porsche fanboy like anyone else, but unless there's a more viable cost effective alternative to our IMS Borescore grenading engines, I think this will become the Plan B of any 997 owner. Who knows may be this will finally get the attention of Porsche NA or Gmbh. I mean imagine the PR nightmare that could get created here if an entire generation of 911 were to have honda engines. oh wait a sec, 996 already get LS swaps, never mind....
https://rennlist.com/forums/rennlist...y-porsche.html
anyway, i'm sure armordude has moved on but for the rest of us something to think about. I actually just messaged Nick minutes ago and he responded quick. call this an inside scoop, but he's pretty close to putting a kit together to sell! I'm a porsche fanboy like anyone else, but unless there's a more viable cost effective alternative to our IMS Borescore grenading engines, I think this will become the Plan B of any 997 owner. Who knows may be this will finally get the attention of Porsche NA or Gmbh. I mean imagine the PR nightmare that could get created here if an entire generation of 911 were to have honda engines. oh wait a sec, 996 already get LS swaps, never mind....
03-22-2024, 12:37 PM
#39
Rennlist Member
Good luck with the rebuild! Sounds like you have rebuild experience so should be a fun project.
Don't scratch the Lobster Fork wheels during the process
03-22-2024, 12:43 PM
#40
RL Community Team
Rennlist Member
Rennlist Member
Porsches come through a 1-way door at my place....I still have the 1st Porsche I bought 40 years ago and the other 6 since then. If I ever build my additional garage, might even add a couple more before I'm all done but I buy the ones I have for specific reasons and keep them literally forever. My son can figure out what he wants to do with them after the next 40 years.
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D977 (03-23-2024)
03-23-2024, 09:08 PM
#43
Seems to be a lot of surprise with these issues. I just rebuilt my 3.8….is what it is.
i will say, since the 2.0 liter aircooled, every version of engine design has had serious issues with cases, heads, cases, bearings, cylinder coatings, timing chains and more.
The engineers nailed it with the 3.2 aircooled….but then off they went again with the 3.6
It’s just part of being a passionate fan of Porsche that enables us to overlook these failures in design.
I'm sort of shocked that anyone is surprised by any of this…just comes with the brand.
don't forget 944 and 928…more awesome engine issues.
i will say, since the 2.0 liter aircooled, every version of engine design has had serious issues with cases, heads, cases, bearings, cylinder coatings, timing chains and more.
The engineers nailed it with the 3.2 aircooled….but then off they went again with the 3.6
It’s just part of being a passionate fan of Porsche that enables us to overlook these failures in design.
I'm sort of shocked that anyone is surprised by any of this…just comes with the brand.
don't forget 944 and 928…more awesome engine issues.
03-23-2024, 09:11 PM
#44
We all love these cars, that is why there is such a big aftermarket that supports our need to keep them going.
can’t find parts for very many 50-60 year old cars, yet we can buy everything we need….still
can’t find parts for very many 50-60 year old cars, yet we can buy everything we need….still