L322 4.2 SC VVT query

GSF 109 · Jan 3, 2021

Just wondering if anyone knows if a non vvt 4.2 SC engine (from a Jaaag) can be adapted to have vvt from a 2006 Range Rover without changing the heads? Reason for asking is that a second hand engine for the rangey is around £2500 and a Jag version is much cheaper. I thought it may be a case of installing the vvt timing gear, front cover, cams, cam covers, sensors, etc........?
The engine will be coming out as it was toasted, and I have to change the sump etc anyway.
I have tried trolling the internet to find this info but can’t see anything anywhere.
Any advice on whether this can be done would be great!

Mark Piercy · Jan 4, 2021

Wow, that's a mission. I'd love to be able to help but this will be a n eye opener for sure.
Good luck

GSF 109 · Jan 4, 2021

Thanks Mark, to be honest I don’t want to spend £2.5 - 3k on it, so this is a money saving exercise more than anything. If I could get a 4.2sc engine at the same price then I wouldn’t bother doing the conversion!
They don’t seem to be available at decent prices.
If I go ahead with it, I will share the pics etc.

tomcat59alan · Jan 4, 2021

GSF 109 said:
Just wondering if anyone knows if a non vvt 4.2 SC engine (from a Jaaag) can be adapted to have vvt from a 2006 Range Rover without changing the heads? Reason for asking is that a second hand engine for the rangey is around £2500 and a Jag version is much cheaper. I thought it may be a case of installing the vvt timing gear, front cover, cams, cam covers, sensors, etc........?
The engine will be coming out as it was toasted, and I have to change the sump etc anyway.
I have tried trolling the internet to find this info but can’t see anything anywhere.
Any advice on whether this can be done would be great!

I've tagged @myfirstl322 ,if I remember correctly he had a SUPERCHARGED. he may be able to advise.

GSF 109 · Jan 4, 2021

Brilliant-many thanks!

badfluffy · Jan 4, 2021

i have an xk8 which has vvt on it, there are 2 types of vvt used on the jag engine

GSF 109 · Jan 4, 2021

Yes, thanks. There is a naturally aspirated vvt version in the Jaguar, but the earlier Jaguar 4.2 supercharged engines did not have vvt. I think this was from 2002 onwards.
The Range Rover 4.2 sc has vvt from 2006 and I would like to think that the Jaguar 4.2sc non vvt has the same block and heads. I can’t seem to get part numbers for both types to check this though.

myfirstl322 · Jan 4, 2021

tomcat59alan said:
I've tagged @myfirstl322 ,if I remember correctly he had a SUPERCHARGED. he may be able to advise.

~~Feck off,~~ leave me alone or I'll call your probation officer.

I bought a sieve, buffed the headlights, tarted up the paintwork and made a hoor of a profit... that's it, period, end off.

tomcat59alan · Jan 5, 2021

myfirstl322 said:
~~Feck off,~~ leave me alone or I'll call your probation officer.

I bought a sieve, buffed the headlights, tarted up the paintwork and made a hoor of a profit... that's it, period, end off.

You've changed a lot and learnt French in lockdown then.

badfluffy · Jan 5, 2021

well ive just gone through my 1999 xk8 manuals and it shows both aspirated and sc as having vvt

L322 4.2 SC VVT query

GSF 109

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Mark Piercy

Well fumbled member....

GSF 109

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tomcat59alan

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GSF 109

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badfluffy

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GSF 109

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myfirstl322

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tomcat59alan

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badfluffy

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