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Swapped in an X51, what's my core worth?

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YOUR RESEARCHSwapped in an X51, what's my core worth?

Leading reported evidence

Replace engine last week

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Performed · outcome unconfirmed · Original poster

I just replaced my engine last week with a new/reman factory X51 after the original developed a scored cylinder on #6.

Swapped in an X51, what's my core worth?
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Leading evidence: 'Replace engine last week' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace engine last week' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace over)

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Unsuccessful attempts
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Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Performed · outcome unconfirmed · Original poster

New X51 on the left, original 3.6l on right (before transmission, PSE, cats and AC compressor were swapped over)

Swapped in an X51, what's my core worth?

Use more than 6 items

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Suggestion

Might try to sell it to the "other" engine shops first, because they pay more for cores than we do, because they need them more than we do and use more than 6 items from the engine to build their engines from.

Swapped in an X51, what's my core worth?
Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace engine last week

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I just replaced my engine last week with a new/reman factory X51 after the original developed a scored cylinder on #6.

Swapped in an X51, what's my core worth?

Replace over)

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

New X51 on the left, original 3.6l on right (before transmission, PSE, cats and AC compressor were swapped over)

Swapped in an X51, what's my core worth?

Use more than 6 items

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Might try to sell it to the "other" engine shops first, because they pay more for cores than we do, because they need them more than we do and use more than 6 items from the engine to build their engines from.

Swapped in an X51, what's my core worth?
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

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Generation: 20261027T140027Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I just replaced my engine last week with a new/reman factory X51 after the original developed a scored cylinder on #6. Because it was not an "apples to apples" exchange, Porsche won't refund the core charge so I've kept the engine. The core has new coils and plugs that were installed 9000kms ago and it also has the LN Engineering updated IMS ceramic bearing. All the ancillary systems (alternator, starter and stock headers) are on it. The VAL (Vehicle Analysis Log) showed not a single type 2 overrev. It's a solid core...except for the scoring issue. I spoke to a few techs, and this engine can be rebuilt or built up to a larger displacement. I'm not really interested in doing that, I just want to recoup all or some of the $4500 CAD core charge. What do you guys think it's worth? I've got a couple of people asking locally about it, but I'm not sure what to ask for it and it might be better to list it here. New X51 on the left, original 3.6l on right (before transmission, PSE, cats and AC compressor were swapped over)

POST 2Original post

I think you've made a mistake...you should recrate that X51 and ship it to me for $4500. I'll pay cash Did you do this through Porsche? How much did it cost you? I thought i read somewhere that Jake Raby was having trouble sourcing good 996 engines...maybe you should message him. He could turn that into a nice 4.0 !!

POST 3 / ORIGINAL POSTEROriginal post

Yup, went through Porsche...got a good deal, but I can't disclose the price. Good idea, I'll contact Jake if he doesn't see this thread first.

POST 4Original post

Cool. Was it a CPO car or are you really good at negotiating?

POST 5 / ORIGINAL POSTEROriginal post

No CPO, but a very good relationship with dealership helped a lot and good negotiation skills.

POST 6Original post

wow, good for you man! Can you post some thoughts on how much different the X51 feels compared to the standard 996??

POST 7Original post

We might be interested, but cores aren't worth a lot to us.. Because we build from the purchaser's engine with our program.. And because we throw away so much of the original components that other shops reuse.. Might try to sell it to the "other" engine shops first, because they pay more for cores than we do, because they need them more than we do and use more than 6 items from the engine to build their engines from. :-)

POST 8Original post

your core is worth about $4,000 to somebody who needs a new engine and has damaged their core via damaging the case such that porsche won't accept it... if a buyer had your core that is what he would save on a new purchase.. curious... cylinder 6 scoring is common among track driven cars... (as well as cylinder 2 and 3) how many km did your engine have when you found this? did you experience any knocking sounds?

POST 9 / ORIGINAL POSTEROriginal post

Quotes source post: 8666492

Picked up the car last Thursday afternoon and having only done 300 kms since, the engine is still very tight; I'm also following Porsche break in procedures too. Having said that, the car wants to rev faster and it definitely pulls harder even at lower RPMs (where I'm confined until break in is complete). I think the difference in a couple of thousand K's is going to be quite marked. It also sounds throatier. I already had the factory PSE so the sound was already great, but the larger intakes manifolds and exhaust headers seem to add to the sound.

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