3100 Performance

[Sidewinder]

Oh ok, so the UIM on the 3500 fits on the LIM of the 3400, and vice versa for the upper for the 3400?

Do I need get get new heads for those to fit on my 3100 if I keep it?

Also, someone said that I would need a PCM and a wiring harness from a 98 Lumina/Carlo up in order for me to tune, is that correct?

Edit: The question should read, "in order for me to tune with a powrtuner"

[SappySE107]

The 97 ecm has more support than the 96 i believe. I don't have any connection with DHP so I don't know what all they support or how well on any of it.

You should get 3400 heads if you use a 3400 lower. You don't have to but its a better port alignment if you do.

Yes, 3400 and 3500 are swappable on a 3400 or 3500 lower. 3500 upper and lower together let you port it larger than the other setups.

[Sidewinder]

Just out of curiosity, how hard would it be to swap a 60 degree V6 into a J-body (ie. a Cav). I've got a few quotes, and swapping in a manual transmission will cost anywhere from 3-5 grand into my car. I'm thinking I could probably get a manual tranny Cav for cheaper then that, work on a 3400 then swap it in.

[Tdunk]

Ive heard swaps done both ways 3100's in Cavy's and Cavy Manuals in other cars. It all depends on how much your willing to pay for fab work and tuning.

[Superdave]

3400 swap into a Jbody is easy, lol.

https://www.domesticcrew.com

[Sidewinder]

Ive heard swaps done both ways 3100's in Cavy's and Cavy Manuals in other cars. It all depends on how much your willing to pay for fab work and tuning.

I have a feeling that swapping the engine in will be much easier and cheaper than swapping a manual transmission into a car that was never designed for one. I just thought I'd throw that out there, because I think something like a Cav would be much more fun to drive and much easier to get parts for. I like my V6 though

Also this way I can work on it and still have a car to drive, I'm not sure yet though.