911uk

986 engine cases vs 996 engine cases

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

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YOUR RESEARCH986 engine cases vs 996 engine cases

Leading reported evidence

Replace liners

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

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Suggestion
The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components.
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986 engine cases vs 996 engine cases

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Leading evidence: 'Replace liners' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace liners' (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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1 matching discussions · 5 captured posts examined · 0 partial discussions

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Use 3.2 engine

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components.
Original post Read captured discussion
986 engine cases vs 996 engine cases

Use 3.4 components

Suggestion or failed attempt

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
The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components.
Original post Read captured discussion
986 engine cases vs 996 engine cases

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 liners

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
The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components.
Original post Read captured discussion
986 engine cases vs 996 engine cases

Use 3.2 engine

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
The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components.
Original post Read captured discussion
986 engine cases vs 996 engine cases

Use 3.4 components

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
The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components.
Original post Read captured discussion
986 engine cases vs 996 engine cases

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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.

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

911uk: 1 discussions

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Generation: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all, does anyone know what the differences are going to be between these 3.2 litre 986 engine cases and my 3.4 996 ones? https://www.ebay.co.uk/itm/Porsche-...450112?hash=item3f9ae21f80:g:oD0AAOSwZ-Ba4w52 Mines an M96.01 I believe - cable throttle 3.4

POST 2Original post

I don't know the technical reason to your query but if you are looking for it as a replacement for your 996 case then I think more of an issue is whether all the 996 internals will fit? If what you really want is a 996 3.4 case , have you tried ringing Steve at Douglas Valley to see if he has a 996 one, I've always found him very helpful on the phone.

POST 3Original post

Dammit, I think......... don't know for sure, they are the same but with smaller bores - obviously! The reason I say this, is because I understood you could use a 3.2 engine and replace the liners to 96mm or 100mm for instance and use the 3.4 components. The 3.2 crank is for example, the same part no. as the 3.4 crank. I could be taking utter c**p of course, but thats what I have understood from trawling the interweb previously...

POST 4 / ORIGINAL POSTEROriginal post

I'd be (well, not me personally, but you get the idea) machining the liners out and replacing them with 100mm bore Capricorn liners, so that's fine. Key is that the cases are correct for the five chain engine (if there's any difference in case design between the three and the five).

POST 5Original post

The AOS/breather pipework/mounting will be different to your earlier M96..

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