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sayanthan

Hypothetical alpina 4.6 question

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I was browsing for an e39 sport front bumper for my e39 540 touring and came across a few used Alpina front bumpers and also a used 4.6 engine which on asking the breaker was mated to a 5HP24 gearbox , same one as in mine car. He has the ecu keys immobiliser etc. also seen a few sets of wheels.

4 questions:-

- Is this a straight forward drop in? Will I need to upgrade the radiator/cooling system?

- are mounting points the same?

- is the steering box in the b10 v8 the same as the 540? Not sure if there are any clearance issues?

- I'm buying some m5 Russ fellows headers and cats which should bolt onto a 540...will they also bolt onto a 4.6?

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It's the same block afaik so yes it should drop straight in and take the headers too. I believe the alpina is a breathed. 540 anyway. Don't imagine they changed cooling system.

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It's the same block afaik so yes it should drop straight in and take the headers too. I believe the alpina is a breathed. 540 anyway. Don't imagine they changed cooling system.

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It's the same block afaik so yes it should drop straight in and take the headers too. I believe the alpina is a breathed. 540 anyway. Don't imagine they changed cooling system.

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It's the same block afaik so yes it should drop straight in and take the headers too. I believe the alpina is a breathed. 540 anyway. Don't imagine they changed cooling system.

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Steering box is standard 540 and only difference on the cooling system is Alpina specc'ed the tropical rad which flows a bit more coolant.

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bit if thread hogging here Duncan plus four lots of phone costs  :blink:

 

 

On ‎09‎/‎01‎/‎2017 at 9:37 AM, duncan-uk said:

 

 

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Yes it'll drop right in, you'll have to change the sump over though as the E53 sump differs to the E39.

 

I looked at doing the swap when I had my 540i/6, but couldn't find a 4.6 lump for reasonable money at all.

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