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View Full Version : Can you swap a 2.7 in for a blown 3.0?



Davetd5
16th November 2022, 08:48 PM
Tennis club friend has an expensive lawn ornament previously known as a 3.0 D4. As the title suggests, I'm curious as to whether a 2.7 out of a D3/D4/ Territory will fit in its place. I've seen a thread somewhere here maybe, just cant find it right now.
Thanks Dave
PS: How do I change my username to DaveTDV6 or whatever?

Narangga
16th November 2022, 08:52 PM
Tennis club friend has an expensive lawn ornament previously known as a 3.0 D4. As the title suggests, I'm curious as to whether a 2.7 out of a D3/D4/ Territory will fit in its place. I've seen a thread somewhere here maybe, just cant find it right now.
Thanks Dave
PS: How do I change my username to DaveTDV6 or whatever?

Ask a moderator via that thread (say the previous Stuuu)

John_D4
17th November 2022, 08:00 AM
Tennis club friend has an expensive lawn ornament previously known as a 3.0 D4. As the title suggests, I'm curious as to whether a 2.7 out of a D3/D4/ Territory will fit in its place. I've seen a thread somewhere here maybe, just cant find it right now.
Thanks Dave
PS: How do I change my username to DaveTDV6 or whatever?

Why would you want to put in a 2.7? A TDV8 would be a better option

BradC
17th November 2022, 09:44 AM
Why would you want to put in a 2.7? A TDV8 would be a better option

Because a 2.7 has been shown to be a feasible "downgrade" whilst retaining all the 3.0 ancillaries. A TDV8 requires some physical adaptation and considerable work on the ECUs and associated interfaces.

A TDV8 would be great, but if you can just swap all your 3.0 bits onto a 2.7 long block it's a faster and less expensive option. There's a guy on the UK D3 forum who has done it. From memory he's a Kiwi.

DiscoJeffster
17th November 2022, 09:56 AM
Because a 2.7 has been shown to be a feasible "downgrade" whilst retaining all the 3.0 ancillaries. A TDV8 requires some physical adaptation and considerable work on the ECUs and associated interfaces.

A TDV8 would be great, but if you can just swap all your 3.0 bits onto a 2.7 long block it's a faster and less expensive option. There's a guy on the UK D3 forum who has done it. From memory he's a Kiwi.

Presumably required an ECU remap for the lowered capacity and torque curve of that engine?

goldey
17th November 2022, 10:00 AM
I'd been led to believe that both options required ECU update/rejigs? But my vote is definitely with the 4.4 TDV8 or even the 5.0 V8 pettie if my current 3.0 throws a leg out again.

DazzaTD5
17th November 2022, 10:34 AM
Yes it works, I've done 2 of them for friends/relatives, i dont offer it as an option to customers.

*You are stripping the engine down to just the bottom end block complete and the heads, everything gets removed (including the manifolds).
*The oil separators are different, the 2.7 has the oil drain back at the back of the block by the tone ring. The 3.0 has the drain in the top of the block at the back.
*The oil separators on both have a one way valve type arrangement, my guess is under full throttle the valve prevents the intake from sucking oil from the block.
*The oil separator from the 3.0 needs to be modified with a fitting to take a oil hose to plumb it to the block drain at the back of the engine, somewhere between the two you need to fit a one way valve, a pcv valve reversed, its all a tight squeeze.
*The heads on a 2.7 have one bolt hole on each side that is missing to mount the 3.0 egr assembly, one can be drilled/taped the other is missing the material on the block.
*Its lot and lots of work, more work than swapping a 3.0 for a 3.0.
*all the bits that bolt onto the 3.0 is needed.
*Keep the 2.7 water pump as the depth varies between the 2.
*keep the rear tone ring for the crankshaft position sensor on the 2.7

*I dont offer it to customers as the comment is typically oh downgrade it?
*which is a ridiculous statement, the difference in capacity from memory is 1mm in the bore and 1mm in the stroke, the 2.7 is a higher compression engine.
*While I havent dyno'd the 2, the power output would be at least equal if not better.

*So if the pcv / oil separator mod was more elegant and I didnt get dumb comment about downgrading, I'd prolly offer it to customers.
*I'm more interested in seeing if the block and heads from the ranger 3.0 are more similar.

Please dont private msg me asking about this, post here so everyone can read, assist etc etc.

DazzaTD5
17th November 2022, 10:37 AM
wrong, no ecu mod needed, the ecu is not AI and only goes by what the sensors tell it.
all that extra power and torque comes from 2 turbos bolted to it

loanrangie
17th November 2022, 11:32 AM
Its one of those do it if you're desperate or dont have the coin for a new/rebuilt 3.0, or you are a gluten for punishment and have the space and time to do it - i'd probably fall in the latter category :)

DazzaTD5
17th November 2022, 12:45 PM
again I would be more interested in if someone has used this business in nsw
Automotive Skills offer a rebuilt bare engine for $11K on a exchange basis.

Anyone know of this business or have used them?

Davetd5
17th November 2022, 12:58 PM
Sounds like a viable option then. This is a 2012, so will a Territory motor fit, seeing as how they're cheaper and easier to find?

101RRS
17th November 2022, 01:08 PM
Sounds like a viable option then. This is a 2012, so will a Territory motor fit, seeing as how they're cheaper and easier to find?

There is a whole thread on this forum and on the UK forum about a guy on here (in Aust) who has done it at home - so a viable option. Us the google search option to search for the thread.

cripesamighty
17th November 2022, 02:37 PM
Was having a look online at a couple of people who put the 3.6L TDV8 into a D3/D4 and they mentioned although their first choice was to have put in the 4.4, unfortunately it was physically too tall for the engine bay without major mods.

loanrangie
17th November 2022, 02:41 PM
Was having a look online at a couple of people who put the 3.6L TDV8 into a D3/D4 and they mentioned although their first choice was to have put in the 4.4, unfortunately it was physically too tall for the engine bay without major mods.

Nothing a pro stock scoop wouldn't fix [bigrolf], i believe they are a 90degree V8 as opposed to the 3.6 which is a 60 degree V8.

Edit wiki says the 3.6 is a 90 degree V8 which is surprising since it shares a lot of parts with the 2.7/3.0.

Tins
17th November 2022, 02:42 PM
Was having a look online at a couple of people who put the 3.6L TDV8 into a D3/D4

It's interesting. Isn't the RRS just a D4 in fancy dress? If so, shouldn't the 3.6 be a relatively easy conversion? Note that I say 'relatively easy' with the LR context in mind.

loanrangie
17th November 2022, 02:45 PM
It's interesting. Isn't the RRS just a D4 in fancy dress? If so, shouldn't the 3.6 be a relatively easy conversion? Note that I say 'relatively easy' with the LR context in mind.


IT is and been done numerous times, 4.4 only fitted to the full fat RR which has a bigger engine bay.

Graeme
17th November 2022, 03:20 PM
Edit wiki says the 3.6 is a 90 degree V8 which is surprising since it shares a lot of parts with the 2.7/3.0.8 cylinders in a V has a different design requirement to 6 cylinders in a V.

Tins
17th November 2022, 03:23 PM
IT is and been done numerous times, 4.4 only fitted to the full fat RR which has a bigger engine bay.

Yeah, RR is a bigger car all round. But the 3.6 in a D3/4 would be a sweet pairing if you have one with a blown engine... Not you, Nick, I know yours is fine[bigwhistle]

Tins
17th November 2022, 03:31 PM
8 cylinders in a V has a different design requirement to 6 cylinders in a V.

There are quite a few 60° V8s out here nonetheless.

loanrangie
18th November 2022, 11:26 AM
8 cylinders in a V has a different design requirement to 6 cylinders in a V.

Yes but anything can be done with balance shafts, split journals etc. Checking on various sites some said it was a 60 degree and others a 90 degree, i was surprised to read that the 4.4TDV8 is built in Mexico - not sure if its used in anything else.

Graeme
18th November 2022, 12:53 PM
I had to search to update my knowledge as I'd only previously encountered 90 deg V8s so thought they were all 90 deg.
LR is the only user of the 4.4 TDV8/SDV8, which was made in the same plant as the US Ford engines.

Dico124
21st August 2023, 08:32 PM
wrong, no ecu mod needed, the ecu is not AI and only goes by what the sensors tell it.
all that extra power and torque comes from 2 turbos bolted to it

Hay mate did you take any pictures of venting mod on the vehicles you done this to currently in the process of trying it but not sure about the breather set up any help would be awesome cheers jay