Question : '92 beretta '03 3400 swap tranny questions

[outlaw1846]

So i have a '92 beretta GT that i for the most part lost the 3.1 out of and very possibly have access to a 3400 supposedly out of a 2003 Grand Am GT. i've looked a lot into doing the swap and found the guide that was done on a caviler and i guess is what most people have used as well as personal support from a forum i used before but appears to have gone tango uniform.

My real questions comes down to mating it with my transmission out of the beretta, as far as i can tell the clutch and flywheel should bolt on the 3400 and then the same with the tranny itself, which is Muncie 5-speed that was in the car when i got which i believe is stock for it. The worry is will that transmission handle the nearly double horsepower increase from the motor especially if i plan to do some build up to the motor like the stage 1 kit from Wot-Tech, 65mm throttle body, and headers so really more like 2.5 times the hp when all said and done. if it won't take the beating any suggestions on how to replace or rebuild it more likely? thanks ahead of time folks!

[bszopi]

First off, welcome to the site.

Secondly, I wouldn't worry about the tranny. Plenty of people are running so pretty hp HP 3x00s in front of them, and the trannies are holding up just fine. The axles typically are the weaker link. As far as the clutch and flywheel, I'm about 95% sure it will all bolt up just fine.

[Superdave]

people are pushing well over 400 HP through those HM282's, it'll handle a 3400 no problem. Mine held up to about 320 HP for years with the old 3500 and is still going strong on a mild 3400. The new owner daily drives it as well.


i'd get a better clutch, a stock one won't last at all. But the flywheel and all that bolts up to the 3400 just fine. Just make sure to use the correct length bolts from your old 3.1 to bolt it on. and use red loctite on everything.

[MY91GT(Z)]

welcome tot the site

their is another site Beretta.net that has lots of info and i would be willing to help out any questions you may have too. their is al;so to LSD options its just how much your willing to spend and how long you willing to wait but the build is def worth it as whats in my sig is good for low 14 sec time slip