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Porsche Club GB

Porsche replacement/exchange engine unit - what's on offer?

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YOUR RESEARCHPorsche replacement/exchange engine unit - what's on offer?

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Fill with mobil 1

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The ones I have seen look brand new to me, and have even been pre-filled with Mobil 1.

Porsche replacement/exchange engine unit - what's on offer?
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Leading evidence: 'Fill with mobil 1' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill with mobil 1' (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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It is probably more cost effective to build new 'exchange' engines on a production line, than to hand rebuild used ones.

Porsche replacement/exchange engine unit - what's on offer?

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Suggestion

I rebuilt my engine using advice from this forum, uk / us specialists and talking to Porsche engineers.

Porsche replacement/exchange engine unit - what's on offer?
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Fill with mobil 1

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The ones I have seen look brand new to me, and have even been pre-filled with Mobil 1.

Porsche replacement/exchange engine unit - what's on offer?

Use advice

No successful repair reported for this finding.

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Discussions that contain suggestions
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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

I rebuilt my engine using advice from this forum, uk / us specialists and talking to Porsche engineers.

Porsche replacement/exchange engine unit - what's on offer?

Use ones

No successful repair reported for this finding.

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Reported fixes
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Discussions that performed work without a confirmed outcome
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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

It is probably more cost effective to build new 'exchange' engines on a production line, than to hand rebuild used ones.

Porsche replacement/exchange engine unit - what's on offer?
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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.

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

  • Porsche Club GB: 1 discussions

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Generation: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My indie has mentioned that it's possible to get a replacement engine on exchange from Porsche for "about £4k". I've asked him to find out for me what is delivered and I guess that someone here will know the answers but: refurbished block of indeterminate age? what's refurbished? to what spec & standard? I could assume that the latest Porsche solution to the IMS bearing is included but what about the liners - hopefully they'd all be renewed? Will there be any kind of warranty with it?

POST 2Original post

I can't comment from experience, but much as I wish it was true, I'd suggest your Indy is living in cloud cuckoo land...

POST 3 / ORIGINAL POSTEROriginal post

Hi Chris, If we're talking about the cost of the exchange short engine, all remains unconfirmed but he's talking about the cost of the unit as delivered, not, all ancillaries fitted and back in the engine bay. Pete

POST 4Original post

Still sounds remarkably cheap to me, I doubt you'd get a short VW engine at that price, let alone a Porsche lump, but there's a sure way to find out... I have recently heard figures of £12,000 mentioned on this forum

POST 5 / ORIGINAL POSTEROriginal post

Please don't take this personally but I fear we're drifting into the territory known as "'Net knowledge" which to my mind is a silly place where every single written remark takes on a legitimacy of it's own, you know "I read at the PCGB forum that...." Hopefully someone with the kind of knowledge I was hoping to learn from will drift by quite soon but in the meantime we can continue to shoot the breeze.[ ][ ]

POST 6Original post

No offence taken Pete - in fact, I agree with you!

POST 7Original post

Net knowledge is useful where you know is it is from legitimate sources. I rebuilt my engine using advice from this forum, uk / us specialists and talking to Porsche engineers. I would suggest calling an OPC to get a quote and then take a deep breath.

POST 8Original post

A short block for a 3.4 is currently £4482 +VAT. A 3.6 is £4741 +VAT. Assuming you don't do anything with the heads, ancillaries, and clutch, etc., you'll also need about £150's worth of gaskets, plus the labour. As far as I can tell, it is an outright purchase, not exchange. It would appear to be a 'subsidised' price, as they were originally £12k. An exchange engine for a 3.4 is £12140 +VAT. I can't find a current price for the 3.6. They come complete with everything except the aircon pump. The ones I have seen look brand new to me, and have even been pre-filled with Mobil 1. The latest exchange engines (and short blocks) are built with the 997-type large single-row intermediate shaft bearing. I don't believe they have done anything different with the liners. Because the liners are cast in to the block, I don't see how they could refurbish them (unlike Hartech who machine new liners) which is why I think they are basically new units. If you have to replace the block, crankshaft and intermediate shaft, the only major components left are the pistons and con rods, and the pistons are likely to be re-usable. It is probably more cost effective to build new 'exchange' engines on a production line, than to hand rebuild used ones.

POST 9 / ORIGINAL POSTEROriginal post

Richard, Thank you for that thorough reply (the one I was hoping for actually). It's a pity no exchange "long" engine price was available for the 3.6 but I'll add a notional 10% just for the sake of adding some kind of man-maths uplift. It gives me a clear idea as to what at least two of my options are, short and long-engine. I've got a ballpark Hartech figure, I have completely discounted the "Renegade" V8 conversion which just leaves my indie to do some research on local independent engine rebuilders... Another step nearer the truth....

POST 10Original post

That is a good price for the short block along with 997 bearing upgrade.

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