[drewml]

is a gm 3.1l v6 (gen ii) compatible to a car with a 3100 v6 (gen iii)? I have a 98 monte carlo ls with high kms, I can get a factory replacement 3.1 v6 that's in a 1990 lumina I was wondering if I could swap them?

[Manitcor]

no, absolutely not. You would have a TON of work to make that work and I don't think anyone in the community has actually attempted to downgrade their engine like that.

The GenIII 3x00 660 is a very common engine. IMHO get a 3400 from a 00+ GrandAM, Impala or Monte Carlo. It's pretty much a direct swap with no modification and gives you an extra 20hp. The cost for a J/Y 3400 with good miles is about the same as a 3100. Expect to pay between $300 and $900 for a long block in decent condition. The price highly varies depending on how common they are in your local yards.

[drewml]

Manitcor, on 04 January 2010 - 11:02 PM, said:

no, absolutely not. You would have a TON of work to make that work and I don't think anyone in the community has actually attempted to downgrade their engine like that.

The GenIII 3x00 660 is a very common engine. IMHO get a 3400 from a 00+ GrandAM, Impala or Monte Carlo. It's pretty much a direct swap with no modification and gives you an extra 20hp. The cost for a J/Y 3400 with good miles is about the same as a 3100. Expect to pay between $300 and $900 for a long block in decent condition. The price highly varies depending on how common they are in your local yards.

Thanks for the post Manitcor. I was wondering if you knew of all the car models with engines that would be an easy swap for my monte carlo? I'm not looking for anything in particular I just want to find something with low mileage weather it be 3100,3400, 3.8L whatever you know.
Thanks again!!!

[Manitcor]

If you are looking for the easiest possible swap it is going to be either the 3100 or the 3400. If you are looking for something that has a lot of after market because you plan to mod then the 3800 (3.8) has that in spades. Of course there is plenty that can be done to the 3100/3400 it's just not as popular (I am a die hard 660 guy myself though I like playing with the 3800)

The 3400 is going to be your best bet, mainly because it was discontinued more recently and it tends to have better castings and tighter tolerances in MOST cases.

The all Grand AM V6's made from 97-on had the 3400

Base model Grand Prixs (97+), Monte Carlo LS's from 00+ and there are many more.

GM used the engine primarily in mid-full size cars and some passenger van applications.

Poke around the forum a bit and I think you will find a list in some old threads.

[drewml]

Manitcor, on 05 January 2010 - 03:28 PM, said:

If you are looking for the easiest possible swap it is going to be either the 3100 or the 3400. If you are looking for something that has a lot of after market because you plan to mod then the 3800 (3.8) has that in spades. Of course there is plenty that can be done to the 3100/3400 it's just not as popular (I am a die hard 660 guy myself though I like playing with the 3800)

The 3400 is going to be your best bet, mainly because it was discontinued more recently and it tends to have better castings and tighter tolerances in MOST cases.

The all Grand AM V6's made from 97-on had the 3400

Base model Grand Prixs (97+), Monte Carlo LS's from 00+ and there are many more.

GM used the engine primarily in mid-full size cars and some passenger van applications.

Poke around the forum a bit and I think you will find a list in some old threads.

Thanks alot for the info

[nitehawkjcb]

Yeah, you would have to make several modifications to make that old motor work correctly. Something I'm fairly positive about - you'd have to change your car from OBD2 to OBD1. All in all, that motor is not worth it, when you can get a whole 3400 for less than $1000. Like Manitcor said though, if you're planning to mod the motor, the 3800 has MUCH more aftermarket support than the 3100/3400. The 3800 isn't a direct bolt up though, like a 3100/3400 would be. For a 3800 swap, you need the transmission, axles, and the engine bay wiring harness. Though for the record, I will say that I like my 3800 better than my 3100. It's an easy motor to work on, but then again, so are the 3100/3400's.

[madbrad]

wikipedia search L32 and you'll get all you need to know about that series. there are many many versions of the 2.8/3.1/3.4.
I don't think emissions laws allow one to put in an older engine than the car or retrograding the diagnostic system to an older one.

This post has been edited by madbrad: 07 January 2010 - 06:56 PM

[drewml]

Wondering if anyone could run a vin# for me 1g1nd52m8w6188224 ? would be greatly appreciated.

[Manitcor]

random post is random

[dykzeulb]

drewml, on 07 March 2010 - 11:15 PM, said:

Wondering if anyone could run a vin# for me 1g1nd52m8w6188224 ? would be greatly appreciated.

What would you like to know about the vin?

[drewml]

I'm good found out what I was looking for.