Knowledgebase:
Fitting VS-VY L67 into VS commodore
Posted by , Last modified by on 07 October 2014 08:57 AM

General Requirements for L67 conversion into factory 5 speed manual (T5/getrag) commodore

  • Mirror balance flywheel to flexplate (balance pressure plate to FW for added security)
  • Get the crankshaft drilled for flywheel dowels to fit flywheel
  • If running the factory loom then several wires must be extended including:
  • Fuel injectors
  • Crank angle sensor
  • Temperature sensor
  • High flow fuel pump (walbro 255LPH EFP-057/GSS-342)
  • PCM/memcal must be recalibrated.
  • These following steps regarding wiring only apply if your undertaking a complete conversion (meaning Ecotec/Buick V6 and automatic transmission swapped with an L67 and manual transmission)
    - bridge neutral/park safety switch permanently for the car to start
    - wire up the manual speed sensor to the dash (3 wires)
    - wire the manual reverse switch to the reverse lights (2 wires)

General Requirements for L67 conversion into factory 4 speed auto commodore

  • If running the factory loom then several wires must be extended including:
  • Fuel injectors
  • Crank angle sensor
  • Temperature sensor
  • High flow fuel pump (walbro 255LPH EFP-057/GSS-342)
  • PCM/memcal must be recalibrated
  • Make sure you retain the L67 flexplate when purchasing the motor as the ecotec and L67 have dissimilar rotational harmonies
  • These following steps regarding wiring only apply if your undertaking a complete conversion (meaning Ecotec/Buick V6 and automatic transmission swapped with an L67 and manual transmission)
    - bridge neutral/park safety switch permanently for the car to start
    - wire up the manual speed sensor to the dash (3 wires)
    - wire the manual reverse switch to the reverse lights (2 wires)

General Requirements to turn an L36 (ecotec) into an L67 (top swap)

  • L67 cylinder heads
  • L67 lower inlet manifold
  • L67 blower and intake
  • L67 tensioners and pulleys
  • L67 alloy coolant pipe
  • L67 harmonic balancer (mirror-balanced to suit ecotec bottom end)
  • L67 vacuum hoses or can be purchased from auto parts stores in different lengths/diameters
  • L67 fuel rails
  • L67 36lb injectors
  • L67 Alternator
  • If running the factory loom then several wires must be extended including:
  • Fuel injectors
  • Crank angle sensor
  • Temperature sensor
  • High flow fuel pump (walbro 255LPH EFP-057/GSS-342)
  • PCM/memcal must be recalibrated

 
Due to the asking price and rarity of VS L67 looms you'd be best to use a VS ecotec engine harness and PCM. To do this you need to have an L67 tune burnt to your memcal and the wiring harness will need to be extended approx. 150mm on each plug on the driver’s side (canister purge solenoid, 3 injectors, earth, oil pressure sensor and knock sensor). By using the ecotec harness you also bypass the dual stage fuel pressure reg and the boost control solenoid as the loom will not contain the necessary plugs (a good thing in my opinion). The only wiring to be modified on the driver’s side is the plugs to the coolant temp sender and sensor which need to be extended to the rear of the motor to suit an L67 or you can unwrap some of the harness. The alternative to this is to source a factory VS L67 engine harness and PCM which are becoming rare and pricey. It’ll probably be easiest to buy another stock VS ecotec loom so this way you can modify it up front before you're ready to swap motors and you can fit it to your l67 whilst extending etc. to get all the lengths correct.

Just a note on terminology, the coolant temp 'sender' is the small brass fitting which works the cluster temp gauge, whereas the larger coolant temp 'sensor' provides operating temp info to the PCM. A coolant temp sender and sensor is used in a VS, whereas later models run just run sensor and the cluster gauge is therefore signaled via the PCM.

Regarding the temp sender, the thread is 1/8npt. It is a tapered pipe thread, not parallel, and therefore gets tighter the further the sender is inserted. If you look at the back of your l67 on the passenger side, locate the coolant temp sensor in the back on the lower inlet manifold under the thermostat housing. You want to add your VS coolant temp sender on the front side of this, between the temp sensor and the back of the passenger side cylinder head (this is only the case if you’ve purchased a post-VS L67). Alternatively, picking up one of the adapters shown in the picture on the right is also ideal.

               

On the left image you'll see a post-VS L67 with no temp sender adapter and on the right you'll see an L67 fitted with a temp sender adapter for VN-VS applications.

VS ecotec throttle and cruise cables can be used, but are different to factory VS l67 items. In particular the throttle cable is much longer and runs under the driver’s side front guard, across the top of the top radiator support and then round to the throttle body. This is to give a much smoother curve in the cable so the bends are not as tight as they are when using the ecotec cable which runs across the firewall.

The VS air-conditioning pump (compressor) and passenger’s side engine mount bracket are different from later models. (The VS engine mount bracket also supports the VS compressor so reuse the VS compressor and the VS passengers’ side engine mount bracket).

Use the VS drivers’ side exhaust manifold.

If installing an L67 with the factory 4L60e auto that came with it into earlier commodores like the VN-VR, a portion of the box will need to be shaved in order for it to sit comfortably inside the transmission tunnel. This will be a case of trial and error until the right amount has been removed.

In most cases Mace Engineering will be able to provide a memcal or PCM/ECU recalibration for you to be able to run the L67 without any worries. Please refer to the hyperlink below and submit to us a report thoroughly listing all specifications of your vehicle including any current modifications prior to making a purchase.

VS commodore running the L67 with factory VS ECU
(select set-up from drop down menu)

 


Comments (24)
Andrew Young
09 March 2018 09:33 AM
Hey, will the bolts on the manual flywheel line up with the l67 or do they have to be modified as well? (not the dowels)
and if using factory L67 wire loom what needs to be changed,done to make it work with a getrag?
Cheers
Jason
15 March 2018 08:58 AM
Hi Andrew,

To be able to answer in a better way, could you please confirm your full vehicle details and the conversion you're planning on doing?

Best Regards,
Jason
Mason
05 April 2018 10:32 PM
I have a ecotec vs auto wagon.

What difficulties will I have if installing a VX L67 motor and auto box with loom and computer so basically full conversion kit you could say. Thanks
Jason
09 April 2018 08:16 AM
Hi Mason,

Thank you for your enquiry:

Its not that complicated to be honest and a plenty of people do this type of conversions. Depending on your mechanical skills, you should be able to do it. To have a detailed idea as to what is involved, please refer to the link below:

http://mace.kayako.com/Knowledgebase/Article/View/305/0/fitting-vs-vy-l67-into-vs-commodore

Depending on which Loom and ECU you would be using, we should be able to supply a tune.

Please shoot us a message at info@maceengineering.com.au for further questions.

Best Regards,
Jason
Mitchell Winter
02 June 2018 12:57 AM
gday there i have a vs ute have fitted an l67 and auto transmission from a 98 vt im having a problem with fitting the exhaust . i have changed over the drivers side manifold but when i offer up the engine pipe it hits on drivers side of the transmission housing . should i go to the vt manifolds? and see if that works. must admit it is taking alot longer then expected . an answer to this would be really great cheers.
Kevin coughlan
10 June 2018 02:27 AM
Hi guys i have a factory l67 vs auto what requirements would there be to make the l67 loom suit a getrag? Or would modifying a eco manual loom be the go
Michael Raff
13 June 2018 04:05 AM
Hi Kevin,

Thank you for your enquiry.

To give you an idea about conversion, please refer to the link shown below.

http://support.maceengineering.com.au/Knowledgebase/Article/View/306/0/fitting-vs-vy-l67-into-vt-commodore

If you have any other questions, please do not hesitate to ask.

Kind regards,
Michael

Michael Raff
13 June 2018 04:13 AM
Hi Mitchell,

Thank you for your enquiry.

"i have a vs ute have fitted an l67 and auto transmission from a 98 vt im having a problem with fitting the exhaust . i have changed over the drivers side manifold but when i offer up the engine pipe it hits on drivers side of the transmission housing . should i go to the vt manifolds? and see if that works. must admit it is taking alot longer then expected . an answer to this would be really great"
You would need a VS exhaust because if installing an L67 with the factory 4L60e auto that came with it into earlier commodores like the VN-VR, a portion of the box will need to be shaved in order for it to sit comfortably inside the transmission tunnel. This will be a case of trial and error until the right amount has been removed.

If you have any other questions, please do not hesitate to ask.

Kind regards,
Michael

Caleb kotsanis
13 September 2018 10:59 PM
Hey guys, fitting vx l67 and vx l67 auto into vs eco sedan. Using the eco loom and eco ecu. The chips we can buy from mace how do they wor,k like do u just pull apart the ecu box and simply plug chip I'm and go? Or do we need to take ecu to get VATTS removed or something ? I have no clue with ecu stuffs or what vatts are. What would you guys wrecking I do with ecu. Cheers
Michael Raff
22 November 2018 09:37 AM
Hi Caleb,

Thank you for your enquiry.

First and foremost, please accept our sincere apology for the delay in getting back to you. Given you are running VS Ecotec ECU and wiring loom, depending on what mods you have done, we would supply a memcal which would fit straight away in the VS ECU.

Also, we will remove the VATS so it should be fine and you don't need anything else.

Kind Regards,
Michael



Tim Barson
21 December 2018 08:35 AM
Hi
Thanks for the info. I have a 96 VR Commodore with 5 speed manual. Looking to swap to a VT l67. Will conversion be the same as for vs above?

Thanks
Michael Raff
25 December 2018 03:20 AM
Hi Tim,

Thank you for your enquiry.

Please refer to the following link.

http://support.maceengineering.com.au/Knowledgebase/Article/View/304/0/fitting-vs-vy-l67-into-vr-commodore


If you have any other questions, please do not hesitate to ask.

Kind regards,
Michael



steve wauchope
28 January 2019 11:24 AM
I have a vs commodore 6 cylinder ute with a column automatic gearbox can I put a vx motor onto the auto into it and what changes apart from changing inlet manifold and exhaust manifold is there to do
Michael Raff
29 January 2019 10:26 AM
Hi Steve,

Thank you for your enquiry.

Just to be 100% sure, you want to put VX Ecotec motor in the VS V6?

Kind Regards,
Michael
Trent mason
03 February 2019 12:53 PM
Just enquiring about putting a vy super charged motor into my 97 vs ute would the whole motor and auto gear box bolt straight in or would i need to modifi my ute it currently has a 8hdd auto l37 ecotec motor and found a whole sedan thats cheap enough
Michael Raff
06 February 2019 05:11 AM
Hi Trent,

Thank you for your enquiry.

To give you an idea about general conversion requirements and tuning info, please refer to the link shown below.

http://support.maceengineering.com.au/Knowledgebase/Article/View/302/0/general-conversion-requirements-and-tuning-info

If you have any other questions, please do not hesitate to ask.

Kind regards,
Michael
Luqee
11 March 2019 02:10 PM
Hi I'm wanting to swap stock ecotec to l67 auto is it a straight swap

the l67 engine is complete with auto gearbox an tail shaft ecu/bcm keys auto loom steering column with barrel an connector

The vy I purchased is complete running standard ecotec 6
Michael Raff
13 March 2019 08:27 AM
Hi Luquee,

Thank you for your enquiry.

To give you an idea about the general conversion requirements and tuning info please refer to the link shown below.

http://support.maceengineering.com.au/Knowledgebase/Article/View/302/0/general-conversion-requirements-and-tuning-info

If you have any other questions, please do not hesitate to ask.

Kind regards,
Michael


Steven Smith
30 March 2019 08:07 AM
G'day, thankyou for the information provided, it's greatly appreciated!
Just wondering if you have or can source the temp sensor adaptor at the back of the motor?
Thankyou in advance, Steve
Michael Raff
19 April 2019 08:15 AM
Hi Steven,

"thankyou for the information provided, it's greatly appreciated!"
No problems :)

"Just wondering if you have or can source the temp sensor adaptor at the back of the motor?"
Unfortunately, this is not something we sell at this point in time. Your best bet would be to look into eBay or Gumtree.

Kind Regards,
Michael

Mark Lambert
15 June 2019 11:01 AM
Hi, I'm wanting to convert a 96 model vt Auto + l67 eng. series 2 & fit it into my 00 vs manual series 3 ute. I kept the lot from the orig. vt, being the eng + auto, ecu + bcm and full loom all from the donor vt. Can i covert the 3 plugs of the vt loom into the vs 2 plugs & then i just swap the bcm under the dash. Has this been done or is there loom adapters that you can buy. Needing the wiring diagrams for this conversion. Vt auto loom into vs d/s plugs
Michael Raff
25 June 2019 08:53 AM
Hi Mark,

Thank you for your enquiry.

You do not necessarily have to use the BCM as we can tune your motor with VATS removed if that makes sense.

If you have any other questions, please do not hesitate to ask.

Kind regards,
Jason
Tim Gamble
23 October 2019 12:13 AM
Hi
I am putting a l67 out of a vs with a supra box into a wb ute. Am just about to start wiring it in. Is a manual loom better than auto or does it not matter. Same question with ecu. Going to modify ecotch loom. Also will the fact that i don't have a speed sensor going to ecu be a problem?
Thanks Tim
Michael Raff
05 November 2019 06:07 AM
Hi Tim,

Thank you for your enquiry.

"I am putting a l67 out of a vs with a supra box into a wb ute. Am just about to start wiring it in. Is a manual loom better than auto or does it not matter. Same question with ecu. Going to modify ecotch loom."
You can use a VT V6 Ecotec loom and ECU, as it gives more flexibility with vehicle speed sensors to be able to use.

"Also will the fact that i don't have a speed sensor going to ecu be a problem?"
It will cause the car not to idle properly.  


If you have any other questions, please do not hesitate to ask.

Kind regards,
Michael
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