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  1. P

    How much oil do your rockers get?

    I think I may have some oiling issues with the top end of my L67 but I'm not completely sure. Would someone please be able to describe/video how much oil is present on the rocker arms/springs once warmed up and running? Is there any splashing around? Thanks.
  2. P

    [VT-VX] Use LS1 radiator cover on V6 (with Mace CAI)

    I've seen a couple photos of this before but not much else, I just did it today so thought I would quickly describe it for anyone interested. Essentially, you modify the radiator cover from a VT-VY LS1 to fit the V6 model when using a Mace cold air intake. If done well, it provides a much...


    Hey everyone So I have my 2003 VY Calais with factory L67 and recently had the bottom end let go. I decided to buy a new motor instead of fixing mine as it was easier and I got a really good deal. My old motor was stock and the new one fairly modified as far as Mace roller rockers, ls1 valves...
  4. P

    [L67] Are my injectors correct?

    I'm looking at getting one of those 'injector service kits' with the o-rings and filters for my VT L67. I thought I would check my injectors first to ensure that they are the original Bosch ones (part number 0280155868). However, I found that the number on the side of my injectors is 24508208...
  5. P

    [L67] Mace 6.35mm manifold spacer

    Has anyone tried the 6.35mm manifold spacer for the L67? I'm struggling to see how it would make a noticable difference but I could be wrong. Secondly, is it cut to match the supercharger outlet or is it large enough to allow some blower porting? Thanks for any help.
  6. P

    [Ecotec] Correct valve springs for roller rockers

    Assuming both are brand new, what would perform better with high ratio roller rockers: 90lb stock springs or 105lb upgraded springs? I’ve seen mixed opinions from people, some claiming that stock springs will float at high RPM, some saying this is only true for old springs, and others saying...
  7. T

    VY Ecotec into VS supercharged Statesman

    Hi all, This one is a bit backwards to the usual conversion that you see people asking about and, as such, I haven't been able to find any info about it. A bloke I work with has asked if I can swap the buggered supercharged motor out of his VS Statesman (which also has no gearbox) with the NA...
  8. Isaac86

    L67 conversion vt to vy

    Hi all, got a vt l67 , using a vy loom, has been extended to suit a vy,want to repin the vy ecu any diagrams, can it be done ?? Cheers


    Alright lads and lasses, I've had a partially built LS1 sitting in my shed for ages now and am finally in a position to be able to drop it into my Calais. Now I know it's obviously much cheaper to just go buy an SS but where is the fun and sense of achievement in that! As far as I know, I can...
  10. P

    Do these O2 sensor graphs look ok?

    Hello. After getting a random DTC76 code, I've been looking into checking the O2 sensors of my '99 VT L67. Today I cleaned the ground connections for the sensors, reset the PCM and went for a drive. When I got back I checked for codes (all good) and then logged the voltage of each sensor while...
  11. H

    l67 back to L36

    hey guys hope everyone's well, as for my inquiry, this ones slightly of a different nature. I'm currently in the process of reversing a standard l67 swap in a VX, Long story short iv'e bought a short l36 engine and used the trans and torque converter off the super 6, retaining the l36 flywheel...
  12. N

    Clutch replace newby need some advice

    I acquired a manual L67 vy Ute a couple of years ago. It's always had a thrust bearing whine but finally shat the bed a month or so ago when panic struck and everyone was freaking out about the covid restrictions. I panicked a bit too and decided to attempt a clutch install myself. It's high up...
  13. J

    AC electrical issues

    hey guys, I’ve got a 2001 WH statesman l67 Okay so I’ve had my air con regassed professionally and pressure tested, there’s definitely no leaks and we’ve replaced the o rings with genuine ones, pressure checked it again 24 hours and still holds pressure But the air con clutch will not engage...
  14. P

    Loud whine/whistle from intake at 10% throttle?

    Hello. On my VT (supercharged) there is quite a loud whine or whistling sound coming from the air intake. The sound is still present when I disconnect the tubing so I know it’s not coming from the filter. It starts off relatively quiet but gets very loud at 10-15% throttle, then starts to get...
  15. vscom88


    Hi I have been doing vats delete tunes for a few years now for memcal based ecus. These are commonly for ecus that need the security aka vats deleted from them to enable the vehicle to fire up. Most cars that require these are vehicles that have had other engines other than the factory option...
  16. M

    Want blown up l67

    Hi all me again if someone could move this post to the right spot that would be awesome as I've got no idea. As some of you may know I've recently put a new ecotec into my Calais. Shes a beauty with only 193.000 on it and it runs great. I've been throwing around the idea of putting a l67 top end...
  17. M

    Want a stock full l67 system from headers back

    Hi all again, just posting an add wanting some help on the gold coast region, I'm just wondering if anyone has a stock l67 twin system exhaust from the headers back? You know like where the y piece is on the ecotec on the l67 it's a twin cat and stays twin the whole way down. If anyone has...
  18. M

    Aussie cars don't get enough love. My review of the 2002 Holden Commodore Calais

    Hi guys, I'm Matt and I've recently been reviewing a few cars. Aussie made cars aren't well represented, so I'm trying to make sure I can review them where I can! Tl;dw - It's a bargain, with great tuning potential from the L67! Share pictures of your Commie!
  19. L

    Overheating/coolant leaking issue L67

    G'day, I have an 04 L67 statesman. I've recently had steam and boiling coolant leaking from the left hand side of the radiator near the top hose. Temp gauge fluctuates on freeway to work and overheating happens if I make a detour between freeway and my house (to the supermarket and so on). I...
  20. Emilyrose

    L67 calais pulley? Belt?

    Help me! My l67 commodore Is making a horrible noise I'll link a video down below Thought at first maybe the supercharger but disconnected the belt and the noise is still there Supercharger only recently had a new belt put on and oil change Had people say pulley People say belt, water...
  21. S

    stock L36 top swap to L67 supercharger

    Hi all I have a 1997 vs commodore Ute 5 speed getrag just the stock ecotec now I have a vs sedan Calais auto that has m90 supercharger ( L67 ) now the block is fucked and body is a wreak,I am planning on doing a top swap from vs Calais to my Ute,what way would u all go about this I will be doing...
  22. N

    Double row timing chain alignment

    Hi guys Just got a cam and rollmaster double row timing chain installed and degreed by my mechanic and I’ve notoiced that that crank sprocket for the chain sits 0.35mm closer to the block then the cam gear and the front of the teeth on the cam sprocket have scoring marks as if the chain is...
  23. N

    L67 identification

    Hi everyone, had a search but couldn’t find anything. Does anyone know if there’s a way to identify a l67 block, I’ve just bought a supercharged vs and was told it had a full l67 in it (not just top end) but it’s mated to a getrag box and has dowls in crank. I’m sceptical it’s actually an l67 I...
  24. VY Series 2 Shanghai Red

    VY Series 2 Shanghai Red

    Hey! I'm a new member so I thought I'd post a little about one of my rides. The pics explain the story, but the description requires explaining... I originally purchased it in March 2004, as an ex-fleet demo VY S2 executive with 34k on it. During its younger years in my care, I'm afraid it was...
  25. V

    Vu n/a v6 manual to l67 super 6 manual

    Hi guys I reacently bought a l67 vt series 2 so that I could transplant its motor and all other related items into my vu series 2. I have a couple questions someone may be able to help 1. My vu doesn't have abs or traction control and the vt does, so is there a way of getting around putting the...
  26. D

    L67 compression reading

    hey all, New to this so please no hate, only a young fella trying to figure something out. I have recently done a compression test on my 2000 VX Commodore with the L67 in it. The motor has approx 250 thousand k’s on it. Just curious as to what the readings should be. The readings I got were...
  27. 5

    2 step l67

    Hey, i just brought a manuel vs l67 and want to know if anyone has ever put a 2 step system on there vs commodore 3.8L? If so where was the system purchased, how did you make it work, and does the ignition system have to be changed? Cheers
  28. L

    L67 conversion help needed

    So after getting sick of working on bloody Hyundai’s I’ve decided to try my luck on commodores. Basically want the cheapest, best mang for my buck kinda race car. Looking at putting an L67 in either a VS or VP sedan and converting to manual. Looking at a vt auto s/charged wagon for $500 for...
  29. L

    vt l67 iac valve

    hey guys i have a vt 3.8s factory (l67) my iac valve has chucked it in however i have tried to install 2 new ones but everytime i start the car the pindle extends all the way and falls out.then the next time i go to start the car it can't get any air flow to crank over. lost for ideas accept for...
  30. R

    Hunting idle

    Hey guys Some info on the car in question: 95 VS commodore, manual, l67 conversion + mods. The issue: Just wondering if anyone would have any idea on where or what to look at that would cause my car to hunt at idle. It is probably the reason my car also has a DTC 76. I've searched for vacuum...
  31. DeathSammich

    L67 Pulley Size

    I have an l67, recently put on new heads and it's running well with a 3.4" pulley. I plan to put in high ratio rockers and a mini blizzard w2a. My question is do I need a dyno tune to drop to a 3 2" pulley or can i order a mace memcal or a memcal from a reputable l67 tuner? Thanks!
  32. DeathSammich

    L67 Timing Chain

    Will be changing the heads on my L67 very soon and was just wondering if it's worth changing the timing chain at the same time? The car has done about 260000kms. How long do these chains last? Will replacing it pick up some lost power? And is there a guide on here to do it? Cheers.
  33. DeathSammich

    Compression Test Results

    Just performed a dry and wet comp test. Wet test did bairly anything. The car has 256xxxks on it. Results are Left bank 75 100 125 Right bank 125 95 125 Doing a leak down in a couple days. Let me know what you guys think!
  34. DeathSammich

    Engine Build

    Hey, just wondering if doing a rebuild when is a cylinder bore necessary? And if a bore has to be done say 20 or 30 thou over, If using OEM oversized pistons is a tune required? Or is the oversizing negligible? The engine has 256xxxks in it and am not sure whether to hone it myself and re ring...
  35. S

    L67 hesitate

    Hi all I own a 03 wk statesman, It’s been idling rough between 0 and 1000 revs and hesitates a lot when traveling at a 100kms and trying to push the accererator between 1000 and 2000 revs, the car also throws Check engine warning light when idling for 5 mins then goes away if I start driving...
  36. DeathSammich

    VY Idle Vacuum

    Hey guys recently got a VY l67. I've done a decent sized service since getting it. Done lim gaksets, replaced charger gasket, charger ubend gasket, tb gasket, PVC gasket, spark plugs, oil, coolant, thermostat and o2 sensors. My main concern is it still doesnt seem to pull a good amount of...
  37. DeathSammich

    Lean Cruise Settings

    What's the best settings for lean cruise? Can I save fuel by setting road speed to say 55 rather than 70 and changing the afrs from 18.1 to 15.4?
  38. R

    Need help. Gearbox related

    Gday guys. Ive got a vt l67 with decent cam and some go fast bits on it. Its Got a shift kitted 4l60e and a standard v6 torque converter. Was giving it abit of curry one night and it just made a terrible sort high pitched sound from the gearbox area and just came to a stop. Wouldnt move you...
  39. DeathSammich

    Fuel Consumption Issue

    I have an l67 and it uses a decent amount of fuel. At idle in park qhen warm uses 1.9-2.2l per hour on the display and in drive uses 2.2-.2.6l per hour. I've read it's meant to read around 1.6? What things could effect my idle usage? I think idle usage pretty much reflects driving usage which is...
  40. DeathSammich

    L67 Fuel Consumption

    I have an l67 with 2 cylinders reading 60psi. I'm just wondering if 2 down cylinders and random misfiring on the 2 would be the cause of high fuel consumption? Averaging around 17l per 100? If I get the cylinders fixed will my economy dramatically increase or would something else be causing it...