10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH997 FSI 4.0L Engine Compatability
Leading reported evidence
Check with member
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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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.
Leading evidence: 'Check with member' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check with member' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion
The short answer is, no, it won't drop in and run without more extensive work.
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.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion · Original poster
To get to the point, would this FSI 4.0L Track Performer II swap over into my '02 C4S and use all the ancillary items (water, fuel, oil, etc...)?
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.
10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi -
Is a 997 engine compatible with 996 components? To get to the point, would this FSI 4.0L Track Performer II swap over into my '02 C4S and use all the ancillary items (water, fuel, oil, etc...)?
This is the engine for sale:
https://rennlist.com/forums/market/1192242
Sorry - I was in a hurry and didn't do a pre-post search. I just found this:
"
You can install a 997 3.8l engine in your 996 3.6l. There are a few modifications required like: vacuum hoses, vacuum lines, air pump, ecu reprogramming. All of those add up on top of the engine cost and labor, plus you have to find someone who knows how to do this right." from MBMotorsports about 5 years ago. Does anyone have first hand experience doing this?
I think you're right. But i think his went into a 996.1.
Personally, I wouldn't do it. FSI would be the better option.
I've seen a post by an extremely knowledgeable person with M96s advise to only deal with engines of the same year as the car.
Porsche aren't like Hondas or Nissans. They often change this within a year or two of production.
My first choice would be to have FSI rebuild your existing M96.
Jake doesn’t do swaps due to potential issues.
If he won’t do it, I wouldn’t suggest it.
I would only consider doing it if Dundon would do the swap since they’ve proven they can successfully do it.
This is a source reference. Confirm exact model applicability in the original material.
