3400 swap - tranny question

niter3 · Post by **niter3** » Sun Feb 05, 2006 3:37 pm

I hope I don't get flame for this, but will the automatic transmission that comes with the Beretta GT v6 work with the 3400 SFI motor?

z284pwr · Post by **z284pwr** » Sun Feb 05, 2006 6:03 pm

Yes it will

Grab a higher stall convereter too while your at it, get one high enough and you can probably run some good E.T.s

IsaacHayes · Post by **IsaacHayes** » Thu Feb 09, 2006 4:50 pm

It will bolt right up. You'd have the advantage over me becasue your's is 3 speed, but it actually has more agressive gearing than my 4 speed auto.

You might have problems mountign the 3400 though, I'm not sure if all L bodies can mount them up or if only the later years... It should be easier than in a J body though. Might have to weld in a different mount or something.. Not sure. Can't remember anymore.

IsaacHayes · Post by **IsaacHayes** » Thu Feb 09, 2006 4:52 pm

Actually, unless it's less trouble to drop the 3400 in, you could do this too:

3400 top end swap. Heads, intake manifolds etc. Keep your 3.1 gen2 block. You could get a cam for the gen2 block and with the 3400 upper stuff make very good power.

I'm not sure if they offer a cam yet for the 3x00 series yet...

niter3 · Post by **niter3** » Sun Feb 12, 2006 11:54 am

Ok, last question. I have a friend that has a 3800 with 20 km's on the motor. The bottom end needs to be done on the motor, but to do a swap for this motor, what all do I need?
Will I need a different computer, and will my auto 3 speed tranny work with this motor?

IsaacHayes · Post by **IsaacHayes** » Sun Feb 12, 2006 5:13 pm

3800 is a totally different animal. You'll need computer, all the wiring, and weld new motor mounts, etc etc etc. It's not an easy swap.

Stick to 3.1/3100/3400 motors for easiest swap.

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