[brianteel]

It appears that are alot of posts on how to swap a l67 into the monte carlo. it is not a hard swap. the part list that you need and alot of the info can be found at www.l67swap.com. I can answer most if not all the questions you have on swapping the motor. i have ben doing them for the last 4 years out of my garage at my house and pretty much know every problem you will run into and the solution to it. the swap is the same for most 88-96 w-body cars and the 1.5 gen w-body as well.

to answer a few quesitons:

yes the motor bolts in with no modding of the motor mounts. even if you have the 3.4DOHC will have the holes in the subframe to mount the motor. the only thign you need to add is a second dog bone.

you should always try to get a mtoor and trans from a regal or GTP. the reason for this is all the motor mounts are right for a w-body car. the H body cars are very different in how they mount and takes a bit of time and money to get the mounts right

95-99 MC - for a engine harness you should use the 98-99 monte carlo or lumina 3800 harness. the reason for this is that you can bolt right into the firewall and do the least amount of wiring changes.

2000- you should use the harness for the 00+ 3800 monte carlo. the reason for this is because it plugs into the car and will rung the motor. you will need use a PCM programmed as a 04+ L67 PCM form a MC or impala.

the axles need to modded. the passagerside is too long if the car is lowered. if it is not you can change the inners and be fine.

for the 1.5 gen cars the downpipe that comes stock on the GTP or other w-body cars from the second gen series.

i hope this clears up some stuff for people

[intimd8r]

brian is "The Man" i could'nt have done it w/ out him....... :first: :clapper: :cheers:

[tjsblackbonne]

if i were to put a sc 3800 motor and tranny in my bonneville(1995 3800Na Series2), how hard would that be. As long as it came out of a bonneville also, it would all fit up. Just need to rewire things correct?

[brianteel]

for your car what i would do is get the L67 motor. bolt that up to your stock trans and get the the wiring to add the boost bypass and use a 95 SSEI PCM. doing that it should run just fine

[tjsblackbonne]

stock tranny is getting to the point of no return it has 134k now. I am just weighing a few options.

[tjsblackbonne]

also i am confused on the 95ssei, that is a series 1 and i am a series 2 would that work. I thought it would be as easy as motor/tranny/pcm/wiring harness swap. Maybe it is just easier to give in and buy a gtp.

[brianteel]

yes it iwll work just fine. you can convert everything over to OBD 2 if you want too

[tjsblackbonne]

I would love to do that, that way i could scan and and get a DHP and stuff. How much work would that be?

[brianteel]

how much will what be

[tjsblackbonne]

to convert to OBD2.

[brianteel]

depends on who does the wiring. if i do you would have to bring me the car because the bonne is a bit different then other cars

[Ltz lover]

can the monte carlo L67 swap be used for the lumina?

[HeavyChevy3800]

Yes. Buck has done it.

[Lumina LTZ]

Ltz lover said:

can the monte carlo L67 swap be used for the lumina?

Yes. Its like the same .. 8)

[brianteel]

Ltz lover said:

can the monte carlo L67 swap be used for the lumina?

yes it is exactly the same as the monte and depending on the year of your car and the engine it has it might be really easy

[Ltz lover]

i have the 1999 lumina ltz 3800 series II how easy would it be

[brianteel]

that is a easy swap really...swapped the L67 in and and add the wires....you can also do the ZZP M90 kit for the L36

[slowmontecarlo]

intimd8r said:

brian is "The Man" i could'nt have done it w/ out him....... :first: :clapper: :cheers:

Correct me if I'm wrong but didnt you use a GTP wiring harness for your swap? I believe your car is a 98 too.

Quote

the axles need to modded. the passagerside is too long if the car is lowered. if it is not you can change the inners and be fine.

What do you mean by if the car is lowered? I used the inner part of the axle from the GTP and outer part from my car. The swap was done before the car was lowered and I didnt make any changed to the drive axles. The car has been lowered over a year now with no problems.

ALSO....thank god you finally posted up that info Brian. Now we can really bash the n00bs when they make new posts about the almightly L67 swap.

[brianteel]

well you should look into your axle length you will find that you maybe causing wear to the trans because of it.

[slowmontecarlo]

Well what axle or hybrid axle should I be using when lowered?

A couple months after I lowered the car I had a CV boot blow out on me. This was on the DRIVER side though. I had a local shop rebuild it. They said something had to of hit the boot though for it to tear like that. While the driver side one was being rebuilt they inspected the passenger side one. Everything looked fine. The passenger side axle has held up for going on 3 years now with no problems. Probally 40k miles, 200track passes and even more racing on the street.

Where should I look for "wear on the trans"?

Any other L67 guys with Eibachs springs have any problems with there 5th gens?

[brianteel]

the wear on the trans is on the inside. you can not see it. the problem is the axle is to far in the housing and does not allow for proper movement. if you go to l67swap.com and look there are lots of posts on shorter axles

[slowmontecarlo]

Ive seen the thread before....I always thought it was 1st gen w-bodys only with that problem. However I know theres not many differences with the 1st gen vs 1.5

Guess it will defiently be an issue to address, although for as long as its been like that I havent had any problems. I know of at least 1 other 5th gen L67 swap monte that lives real close to here (tanto) I think hes setup the same way as me with eibachs.

Has anyone ever damaged there transmission in this way?

[chevanater]

I havnt had any tranny problems that I know of. I seem to be developing a leak from the passenger boot though. I do not think it is related though

[intimd8r]

no i used the harness from the car. as far as the axles swapped the outer pass. w/ no problems. :wink:

[longituderules]

Silly question but I'm sleepy and search is a lil rough...
Now, with a 97 Monte carlo 3100, for a L67 swap using the 98-99 harness.. what exactly has to be spliced/rewired? Would this be the correct diagram? http://l67swap.com/f...icle.php?aid=34
So according to that it'd be just deleting a few things and adding 1 wire? I'm just trying to figure this out as my bro will either be doing a L67 swap or a 3400 swap... the only things holding him back now from the L67 is the wiring and axle things. Thanks.

[brianteel]

look on the site most of the info is there

[DigitallyPhoenix]

well its no longer call l67swap.com :evil: time to update the post title.... its now http://forums.motorswap.org/

[Steve Smith]

Even though the engine in my '95 Buick Century runs strong with on 57K orig miles, and since I'm completely redoing the entire front end of the car in my body shop ( due to a major front end accident),now is the perfect time to swap the engine , especially with the entire radiator support and rest of the front sheet metal off. Is it an overly complicated issue to put either a normally asperated 3800 or even a supercharged 3.8 in place of my 3.1? Man, wouldn't that be a sleeper especially in an all white station wagon!

[bumpin96monte]

Steve Smith said:

now is the perfect time to swap the engine , especially with the entire radiator support and rest of the front sheet metal off. Is it an overly complicated issue to put either a normally asperated 3800 or even a supercharged 3.8 in place of my 3.1?

Its not super easy, but its not the worst thing in the world either. The front end being taken apart doesn't help a whole lot- I mean pulling the bumper and the radiator only takes 10 minutes- especially once you get the old engine disconnected, and obviously have the coolant lines drained.

If you're doing the swap, I would go for the s/c 3800- you're only talking another couple hundred bucks for a complete powertrain, and the swap is almost the same difficulty (you have to change the map plug and thats it).

If you read up on the motorsport.org site- they have a lot of good info on there...

[Steve Smith]

I imagine with the low miles on the stock 3.1 I could sell it for a decent price which would help finance this project. Would the best route be to swap the entire engine & trans? I would think the s.c. 3.8 would have a beefier trans than my current 3.1. Heck, swapping out the entire sub-frame for the project is not beyond my capacity as an auto body mech. I'm just not big on electrical / sensor issues :roll: I remember my '98 Pontiac Gran Prix GT with a 195 h.p rated 3.8 n.a. ran a decent 15.47 at the track bone stock except for some shorter gearing using slightly shorter tires.